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Check Plagiarism

Check-Plagiarism offers a reliable plagiarism checker that is widely used to detect plagiarism. Our plagiarism detector offers deep plagiarism detection for writers as well as students in schools, colleges and universities. To use this tool, enter your content below and click on the button.  

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Features of Check-Plagiarism

Our tool helps to check plagiarism in your essays, assignments, and blogs. There are many helpful features we have developed in our tool. Here are some of the main ones:

Fast & Accurate

Our plagiarism checker scans your text against billions of web pages & online resources. You can check up to 1,000 words at once. (For premium users, the word limit is increased to 20,000).  Upgrade to pro in just $7

100% Safe & Secure

All files and documents checked with our free plagiarism checker are 100% safe & secure. Your data is completely secure on our servers. No user/search engine/crawler can access your data in any capacity.  

Multiple files support

You can check copied content in up to five documents at once (supported formats: doc, docx, txt, and pdf). Scanning multiple papers will not decrease the speed of the tool. You can also compare documents for plagiarism between them.

Easy-to-Use UI

Our plagiarism checker has a very easy-to-use interface. It provides a simple process to check for content similarities. You can generate a detailed report with percentages.   

Enhanced Reporting with the percentage

Our plagiarism detector scans your text with online resources and provides a complete report with percentages. It helps you to check which sentences of your content are unique and which are plagiarized.

Sentence based checking

Our tool scans every single sentence and compares it with all online resources to detect plagiarism. It uses advanced AI algorithms to detect paraphrased plagiarism.  

  Relevant Tools

• Paraphrasing Tool
• Article Rewriter
• Word Count & Character Count
• Citation Generator
• Plagiarism Comparison Search
• Grammar Checker
• Text Summarizer

Why Check-Plagiairsm?

Online plagiarism checker users.

Our online plagiarism checker is widely used and loved by thousands of students, teachers, and content writers. We provide super-fast plagiarism detection solutions for colleges, universities, and all other educational institutes.

Students use it to check their papers, assignments and thesis for plagiarism.  It is important for students to check their papers for plagiarism because plagiarism is considered a form of academic dishonesty . This means that if a student submits a paper that includes plagiarized material, they could face serious consequences , such as failing the assignment or the entire course, or even being expelled from school .

Teachers use our plagiarism checker tool to ensure that their students are submitting original work. Our tool can help teachers quickly identify plagiarism in student work, so they can take appropriate action. 

By using our tool teachers can

Ensure academic integrity: By checking for plagiarism, teachers can ensure that their students are submitting original work and not cheating.

Promote original thinking: teachers can encourage their students to think critically and independently to develop their own ideas

Prevent grade inflation: If plagiarized work is undetected it can lead to grade inflation that can damage the integrity of the institution. It is also important to maintain the reputation of the institution. Check-Plagiarism also provides matched sources, so it helps to cite sources in your document. Use our citation generator  to create APA, MLA, and Chicago formats.

Writers use this plagiarism detector:

To ensure originality : Plagiarism checker helps writers to ensure that their work is original and not copied from other sources.

To identify and correct mistakes : Writers can identify and correct any unintentional mistakes, such as failing to properly cite a source.

To improve credibility : Authors can establish their credibility as trustworthy sources of information by making sure their work is original and properly cited.

Webmasters use this tool to make sure their content is plagiarism-free because

Plagiarized content can damage the reputation and credibility of a website.

It's also important because  Google has clear policies on plagiarized content and penalizes websites that contain copied content.

It can lead to legal problems, If the original content is protected by copyright. 

Educational institutes (colleges and universities) can integrate our tool using Plagiarism APIs .

Law firms use this tool to protect the documents of their clients. 

Check more details about how to avoid plagiarism . 

How to use this Plagiarism Checker free?

To check plagiarism of your content by using our plagiarism detector online, follow the below instructions:

Type or paste your text into the input box.

Exclude the URL (if any) from the “Show Advanced” option. This URL will be ignored while checking for plagiarism, any text copied from the excluded URL will be marked as unique content.

Click on the Check Plagiarism button. We have added recaptcha security to avoid robots. 

All done? No extra steps are needed. Our free online plagiarism checker will scan the given content against millions of online resources and generates an accurate plagiarism report with percentage. With Deep-Search technology, free plagiarism checker can also detect instances of plagiarism accurately.

Frequently Asked Questions?

  what is considered plagiarism.

According to Oxford: “Plagiarism is presenting someone else’s work or ideas as your own, with or without their consent, by incorporating it into your work without full acknowledgment”.

It involves:

1. Copying and pasting someone else's text

2. Paraphrasing someone else's work without proper attribution

3. Using someone else's ideas without giving them credit

4. Using someone else's images, videos, or other media without permission

5. Submitting someone else's work, such as a paper or project, as your own

  Is it plagiarism if you copy and paste but cite the source?

Presenting someone’s idea as your own is considered plagiarism if not properly cited. While if you copy and paste but cite the source with proper formatting then it's not plagiarism.

  Is the usage of plagiarism-checking tools Illegal?

Educational institutions highly recommend plagiarism-checking tools to prevent copying of others’ work. Even research work is not considered authoritative without a plagiarism report. So using plagiarism-checking tools is legal and necessary.

  What are the consequences of plagiarism?

Plagiarism involves serious consequences as its a crime.

Its Academic consequences range to:

• Failing the assignment
• Failing the course
• Institute Suspension
• Expulsion from institution

Its Legal consequences cost you:

• Intellectual Damages
• Criminal Charges
• Loss of your employment

Its Personal consequences can affect you with:

• Loss of credibility
• Damage of Reputation
• Damage to professional relationships
• Slowing down your career, especially in Education

We Cover Multiple Platforms

Our plagiarism-checking process supports one of the most popular platforms, WordPress. You can check for plagiarism/duplication of your content directly from your WordPress admin panel. Just download our plagiarism checker plugin and start using it. Check Plagiarism also support educational institutions through our APIs. Universities, colleges, and other educational institutes & Organisations can integrate our APIs to detect plagiarized content on their own end. Our plagiarism tool works accurately on other platforms as well.   

A WordPress plugin is available to check plagiarism directly from the admin panel.

Configure your plagiarism software with our APIs, to check directly from your server.

How it Works

Content is first parsed into sentences and then every sentence is checked for plagiarism. If any duplication is found against that sentence, it will be marked in red and if that text is unique, it will be shown in green.

Comparing your content

All results are displayed in real-time. You can compare your content with any of the matched URLs with just one click. You can also use this plagiarism tool directly on the plagiarism comparison tool page.  

Happy Customers

Our plagiarism checker is loved by 400,000+ customers worldwide. We have positive feedback from customers of all categories. Look at those reviews below.

Our Customers Feedback

We have 70,000+ happy clients including Masters, Students, Teachers and publishers around the world. A Positive previous record is enough for new users to understand that we have the most accurate plagiarism detector.

This free online plagiarism detector is amazing; it checked my content in seconds with very accurate results. According to me it's the best plagiarism detection software.

I am a student and I use this tool regularly to check plagiarism for my papers. Best plagiarism checker for students.

I used their APIs to configure my college website so that students can check plagiarism free for their papers directly from the college website.

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Trusted Online Plagiarism Checker For Students and Academics

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Paperpal Offers More Than An Online Plagiarism Checker

Paperpal Prime provides comprehensive language correction, paraphrasing, and generative AI writing capabilities to transform your academic writing.

Online Paraphrasing Tool

Use Rewrite to paraphrase content and add variety, achieve an academic tone, and reduce length to achieve clear, concise, impactful academic writing.

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Plagiarism Checker

Detect accidental plagiarism with
 scribbr’s free plagiarism checker.

What you get with a premium plagiarism check

Catch accidental plagiarism with high accuracy with Scribbr’s Plagiarism Checker in partnership with Turnitin.

AI Detector

Detect AI-generated content, like ChatGPT3.5 and GPT4, with Scribbr’s AI Detector.

AI Proofreader

Find and fix spelling and grammar issues with Scribbr’s AI Proofreader.

* Only available when uploading an English .docx (Word) document

Rely on the most accurate plagiarism checker of 2023

Scribbr’s plagiarism checker, in partnership with Turnitin, detects plagiarism more accurately than other popular tools — particularly when texts are edited. This makes it the go-to plagiarism checker for students in the UK.

See test results

Find out if your writing contains potential plagiarism

The free plagiarism checker, in partnership with Turnitin, will give you a heads-up if your writing is similar to the content in our database.

View your top 5 matching sources

The Sources Overview shows you the top five sources that match your writing. You can see the domain, database, and the number of matching words for each source. It’s important to cite these sources!

Identify spelling and grammar issues in your document

In addition to checking for plagiarism, powerful AI software scans your English text for spelling and grammar issues. The free check gives an overview of the issues per category.

Submit your paper with confidence, knowing it’s free of plagiarism

Make your writing plagiarism-free with the premium plagiarism checker.

Get a precise similarity percentage

The premium plagiarism checker provides you with an accurate similarity score that tells you what percentage of your paper is not original.

Review highlighted text snippets for missing citations

Similarities in your document are highlighted for quick and easy reviewing. Each color corresponds to a source in the Sources Overview.

Compare your writing to the original text side by side

Use the comparison feature to see how similar your writing is to the original without leaving the plagiarism checker report.

Check for self-plagiarism by uploading previous assignments

Upload previous assignments or a classmate’s paper to catch (self-)plagiarism that is otherwise difficult to detect by regular plagiarism checkers.

Review your spelling and grammar corrections in Word

Writing issues are corrected automatically when you upload a Word document. To review the corrections, you can download a Word document with Track Changes.

Price per document

Prices are per check, not a subscription

Volume pricing available for institutions. Get in touch.

Request volume pricing

Institutions interested in buying more than 50 plagiarism checks can request a discounted price. Please fill in the form below.

Name * Email * Institution Name * Institution’s website * Country * Phone number Give an indication of how many checks you need * Please indicate how you want to use the checks * Depending of the size of your request, you will be contacted by a representative of either Scribbr or Turnitin. * Required

Excellent Review score

Scribbr’s plagiarism checker is rated 4.9 out of 5 based on 3,558 reviews.

Privacy guarantee

Submissions will never be added to our content database. Therefore, no other plagiarism checker will see your text.

Scribbr's plagiarism checker is perfect for you if you:

• Are a student writing an essay or paper
• Value the confidentiality of your submissions
• Prefer an accurate plagiarism checker
• Want to compare your work against publications
• Can benefit from an AI Detector

This plagiarism checker is not for you if you:

• Are a copywriter, SEO, or business owner
• Need to check lots of documents for plagiarism

Start for free

The go-to plagiarism checker for students and academics

University applicants

Ace your personal statement for your university application.

Compare your UCAS personal statement against billions of webpages, including other essays.

• Avoid having your personal statement flagged or rejected for accidental plagiarism.
• Make a great first impression on the admissions officer.

Submit your assignments with confidence.

Detect plagiarism using software similar to what most universities use.

• Spot missing citations and improperly quoted or paraphrased content.
• Avoid grade penalties or academic probation resulting from accidental plagiarism.

Take your journal submission to the next level.

Compare your submission to millions of scholarly publications.

• Protect your reputation as a scholar.
• Get published by the journal of your choice.

You don't need a plagiarism checker, right?

You would never copy-and-paste someone else’s work, you’re great at paraphrasing, and you always keep a tidy list of your sources handy.

But what about accidental plagiarism ? It’s more common than you think! Maybe you paraphrased a little too closely, or forgot that last citation or set of quotation marks.

Even if you did it by accident, plagiarism is still a serious offense. You may fail your course, or be placed on academic probation. The risks just aren’t worth it.

Scribbr & academic integrity

Scribbr is committed to protecting academic integrity. Our plagiarism checker, AI Detector , APA Reference Generator, proofreading services , and free Knowledge Base content are designed to help educate and guide students in avoiding unintentional plagiarism.

We make every effort to prevent our software from being used for fraudulent or manipulative purposes.

Ask our team

Want to contact us directly? No problem. We are always here for you.

• Chat with us
• Email [email protected]
• Call +44 (0)20 3917 4242
• WhatsApp +31 20 261 6040

Frequently asked questions

Extensive testing proves that Scribbr’s plagiarism checker is one of the most accurate plagiarism checkers on the market in 2022.

The software detects everything from exact word matches to synonym swapping. It also has access to a full range of source types, including open- and restricted-access journal articles, theses and dissertations, websites, PDFs, and news articles.

Scribbr’s  Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker , namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases .

The add-on AI detector is powered by Scribbr’s proprietary software.

Your document will be compared to the world’s largest and fastest-growing content database , containing over:

• 99.3 billion current and historical webpages
• 8 million publications from more than 1,700 publishers such as Springer, IEEE , Elsevier, Wiley-Blackwell, and Taylor & Francis

Note: Scribbr does not have access to Turnitin’s global database with student papers. Only your university can add and compare submissions to this database.

At the moment we do not offer a monthly subscription for the Scribbr Plagiarism Checker. Plagiarism checks can be bought separately — prices depend on the size of your document.

Your writing stays private. Your submissions to Scribbr are not published in any public database, so no other plagiarism checker (including those used by universities) will see them.

The free report tells you if your text contains potential plagiarism and other writing issues. The premium report gives you the resources you need to review issues in detail and resolve them.

Generating your (free or premium) plagiarism report takes between 1 and 10 minutes, depending on the document size.

In that time, your document is compared to the world’s largest content database, with over 99 billion webpages and 8 million publications.

Scribbr’s plagiarism checker offers complete support for 20 languages, including English, Spanish, German, Arabic, and Dutch.

The add-on AI Detector and AI Proofreader are only available in English.

The complete list of supported languages:

If your university uses Turnitin, the result will be very similar to what you see at Scribbr.

The only possible difference is that your university may compare your submission to a private database containing previously submitted student papers. Scribbr does not have access to these private databases (and neither do other plagiarism checkers).

Luckily, many papers, theses, and dissertations are also published in public databases that Scribbr does have access to.

Plagiarism Checker for Students

Quetext's plagiarism checker is a must-have free tool for every student. Identify plagiarism before it's too late, get resources to improve your writing, and add citations quickly, all for free. You do the writing, and we'll help with the rest.

Why use Quetext over other plagiarism detection tools?

Avoid “accidental plagiarism”.

Our ColorGrade™ feedback feature highlights exact matches vs. near-exact or “fuzzy” matches with corresponding colors. From there, you can resolve plagiarism issues by deleting or altering the at-risk copy.

Cite sources directly in your paper

For the copy you want to keep, you can use our handy “Cite Source” feature to generate citations in MLA, APA, and Chicago formats and insert the citations directly into your document.

Turn your paper in with confidence

Our plagiarism detection tool uses DeepSearch™ Technology to identify any content throughout your document that might be plagiarized. We identify plagiarized content by running the text through three steps:

• Contextual Analysis
• Fuzzy Matching
• Conditional Scoring
• Spelling Checker
• Grammar Checker (beta)

Sign Up for Quetext Today!

Click below to find a pricing plan that fits your needs.

How you can avoid plagiarizing

Know the different types of plagiarism

There are several types of plagiarism, and it’s essential to understand the differences to avoid making these mistakes and prevent plagiarism in the classroom.

• Direct plagiarism: Using someone else’s exact words and using them as your own with no credit to the source. Eliminating portions of the text still qualifies as direct plagiarism.
• Patchwork plagiarism: Creating new text by combining exact phrases or sentences from multiple sources without acknowledging the original authors or sources.
• Self-plagiarism: Attempting to reuse or recycle your previous work and claiming it as a new piece of work without mentioning the source of original publication.
• Source-based plagiarism: Producing false sources within your writing or omitting one or more references from citations.

Cite your sources

Students often think of citations as a simple means of acknowledging another author's work. While this is their main purpose, there are other benefits as well.

Source citations also show readers where to go to learn more. By providing context around the citation in student papers, such as the source medium and when it was published, readers can locate the information more easily. Giving too little source information or improperly formatting it can result in unintentional plagiarism. These mistakes also make it difficult for readers to locate the original source and verify information.

Quetext's citation generator makes it easy for students to accurately cite their sources without slowing down their writing process. Once a user inputs the text, the software identifies the passages that require a citation and subsequently generates it in the style required — APA, MLA, or Chicago.

Always use a plagiarism checker

The best way to avoid severe plagiarism consequences is to use a plagiarism checker. Often, plagiarism is unintentional and results from poor paraphrasing of material found online. Using a plagiarism checker, the student can avoid accusations of any kind of plagiarism and benefit from a close review of the original material.

Quetext's plagiarism checker provides a speedy, easy process for students to receive accurate results, identifying areas of concern and providing on-page solutions.

Plagiarism Checker for Students FAQ

What are the consequences if a student is caught plagiarizing.

The consequences of plagiarism vary according to the student’s academic institution and grade level. For example, a middle school student who plagiarizes within an essay may receive a stern warning and additional instruction related to the process of citing sources or summarizing one’s thoughts.

However, students in higher education institutions guilty of plagiarism in academic papers face much steeper repercussions, including, but not limited, to failing grades and disciplinary or legal action. Factors such as the assignment itself, the instructor, and whether or not it is your first offense impact the outcome.

Depending on the severity of the situation, plagiarism can also impact a student’s reputation or future career opportunities.

How does a plagiarism checker help students?

A plagiarism checker helps students be proactive in finding instances of plagiarism before an assignment is completed and turned in with no way to correct the errors.

In addition, by identifying the potential conflicts early, students can conduct further research to find alternative sources to understand the material better and revise or rewrite the offending passages.

Plagiarism checkers also help students learn innovative writing techniques, improve their writing skills through better research and experience in summarizing ideas, and preserve academic integrity.

Do teachers use plagiarism checkers?

Many teachers use plagiarism checkers to ensure a student’s submission is 100% original work. With the rise of easy-to-use tools like Quetext, checking for authenticity and text matches is a quick and affordable process to scan millions of online data sources.

Using plagiarism checkers also allows teachers to educate their students on the importance of citing sources and the ethical responsibilities of research and opinion writing.

Plagiarism has always been a source of concern for teachers, but until now, options for manual detection have limited their opportunities to identify the problem efficiently. However, the evolution of technology in this area has made the tools more accessible than ever.

How do teachers check a paper for plagiarism?

Teachers are skilled at detecting plagiarism, especially those who have been teaching for a significant period or who teach in the areas of English or Literature. Some teachers use a simple technique of entering a sentence into a search engine to find instances of duplicate text on web pages.

However, this manner of plagiarism detection is manually intensive and dependent upon unreliable algorithms. Some may use their writer’s intuition by identifying anomalies in sentence structure, inconsistencies in vocabulary or grammar, or a combination of all of these.

Others use more sophisticated and robust plagiarism detection software, like Quetext. Quetext can scour millions of sites using DeepSearch™ technology to identify plagiarism in seconds. These tools also enable instructors to work with students to improve their writing and avoid repeating the same mistakes in the future.

Can students get in trouble for accidental plagiarism?

Yes, students can be penalized for plagiarism, even if it was an accident. Unfortunately, instructors have no way of knowing the intent behind plagiarism. Depending on the type of plagiarism, instructors may allow leeway for students to learn from their mistakes and correct the work without the threat of severe consequences.

However, repeat offenders are less likely to receive this flexibility and may face steeper penalties. Additionally, instructors of college-level courses with clear plagiarism guidelines and policies may be less inclined to let students off the hook and instead enforce severe consequences.

Is there a free plagiarism checker for students?

Yes! Quetext offers both a free and a paid subscription for students to seamlessly verify their writing. Quetext goes beyond traditional plagiarism checkers to provide students with advanced technology that puts content through three layers of evaluation in just a matter of seconds. This level of insight enables students to understand the degree to which the text has been plagiarized and decide whether to rewrite the text or use the citation assistant to cite sources.

Quetext also offers a detailed report students can use to document their editing efforts and present as proof of a plagiarism-free, 100% original content document.

Quetext's plagiarism tool also offers flexible pricing for its Pro features which facilitates the citation of online sources, attributions, and real-time feedback for writing improvement.

How can a student check for plagiarism?

Anyone can enter the text from a research paper into a search engine and find potential matches that identify instances of plagiarized content or duplicate content. However, this method is largely ineffective and does not identify every area of concern.

Students can use Quetext's free online plagiarism checker by creating an account, copying and pasting the text in question into the plagiarism checker, and receiving a comprehensive analysis with color-coded feedback, a plagiarism percentage score, and options for editing the text.

Quetext is one of the best plagiarism checkers available with high-quality insights and accurate results.

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14 Best Free Plagiarism Checkers Online – 2024

Best free online plagiarism checkers 2023

Table of contents

Why plagiarism checkers, 5 important questions to ensure before giving your content to a free plagiarism checker, best free plagiarism checkers online overall list, 1. duplichecker.com, 2. plagiarismsoftware.net, 3. plagiarism checkerx, 4. plagscan.com, 5. plagramme.com, 6. smallseotools.com – free plagiarism checker, 7. plagiarisma.net, 8. quetext.com, 9. easybib.com, 10. noplag.com, 11. viper plagiarism checker, 12. copyleaks plagiarism checker, 13. turnitin.com, 14. ithenticate.com.

• How to Choose the Best Plagiarism Checkers

Recent Best Plagiarism Checkers List 2024

Plagiarism is a serious offense that can hurt your academic or professional career. To avoid accusations of plagiarism, it’s important to use a plagiarism checkers to ensure that your work is original.

There are many different plagiarism checkers available, so it can be difficult to choose the right one. In this article, we’ll compare the best plagiarism checkers of 2023 and help you choose the one that’s right for you.

Plagiarism is not happening with intention. most of the time, it appears by mistake in your thesis. Even a single inaccurate citation also considered being plagiarism. To identify plagiarism, there are many free plagiarism checkers available online.

Identifying unoriginal content, reducing similarity, and improving the quality of your thesis with some effective free plagiarism checker tools are very important before submitting your thesis.

In this article, ilovephd provides the 10 free plagiarism checker tools available online for your thesis correction.

Risk Factors of Free Plagiarism Software

When it comes to free plagiarism software, the first thing that comes to your mind is content theft .

There are hundreds of free plagiarism-checking software available online but still, it would be difficult to recommend a free tool to check plagiarism. Let’s see some of the major reasons why researchers refuse to use free plagiarism software.

• How are plagiarism-checking tools earning?
• Does that plagiarism checker store and sell your content?
• How effective that plagiarism checker is?
• Does the end report accurate?

By finding the answer to these questions, you can go further to take a plagiarism report in the free tools. With these important questions, we analyzed more than 50 free tools and shortlisted 10.

Most of the tools given in the list are earned by Google Adsense also ensures the data protection of the unpublished scientific thesis content.

Here are some of the best free plagiarism checkers available online:

• Grammarly: Grammarly offers a free plagiarism checker that scans your text for duplicate content and provides a similarity percentage. It’s user-friendly and integrates well with your writing process.
• Copyscape: Copyscape is a dedicated plagiarism checker that can be used for free to find duplicate content online. It’s especially useful for verifying if your content has been copied by others.
• DupliChecker: DupliChecker provides a free and user-friendly plagiarism checker that scans your content for similarities and generates a plagiarism report.
• SmallSEOTools: SmallSEOTools offers a comprehensive suite of SEO and content-related tools, including a free plagiarism checker. It’s simple to use and provides detailed reports.
• Plagscan: Plagscan offers a limited number of free checks per month. It’s known for its accuracy and is commonly used in academic and research settings.
• Quetext: Quetext offers a free plagiarism checker with a simple interface and the ability to upload documents for scanning. It provides a similarity percentage and highlights potential issues.
• PaperRater: In addition to grammar and spell checking, PaperRater offers a free plagiarism checker that provides an originality score and identifies potential sources of plagiarism.
• Prepostseo: Prepostseo offers a free plagiarism checker that allows you to upload documents or check text directly on their website. It provides a similarity percentage and highlights duplicate content.
• Plagiarisma: Plagiarisma is an online plagiarism checker that supports multiple languages and checks content against a wide range of sources on the web.
• PlagScan (Free Trial): While PlagScan offers a paid service, it also provides a free trial version that allows you to check a limited number of documents for plagiarism

10 Best Plagiarism Checkers Free for Thesis, Research Paper, and Assignment

Duplichecker is a free online plagiarism-checking software developed for proofreading, editing online content, and plagiarism chinking for students and academic writers. this site gives the best accuracy of output with a statistical report by using their tools.

Plagiarism software is one of the famous free plagiarism checkers online . This tool was designed in a way to help academic writers to analysis their text documents. This free plagiarism checker performance accurate and gives all possible details about the document.

This software is designed to detect duplicate content against your given documents/text/thesis which helps students, teachers, universities, colleges, and academic writers to check the originality of their content over plagiarized material.

Plagiarism CheckerX software’s trial version is FREE to download but has some limitations. But still, it performs better in the free version for small chunks of the document.

PlagScan is another leading plagiarism checker tool with strong privacy and legal compliance. PlagScan ensures the uploaded documents will never be shared with unauthorized third parties.

Plagramme plagiarism checking software works deeply to check the citations, online contents, and academic documents. plagramme reports if traces of repeated paraphrasing and copied content are found in your thesis.

Small SEO Tools offers a Best Free Plagiarism detector which gives deep insights of the document with respective copied URLs. This free plagiarism tool helps millions of students and writers to check the plagiarism every day.

Plagiarisma is a free plagiarism checker tool which also available for Android devices. This easy and free plagiarism tool helps you to check plagiarism in an effective way.

  Quetext is a leading plagiarism-detection software, providing services to over 2 million teachers, students, and professionals worldwide. Quetext is to empower writers with a sense of security in their work.

EasyBib Plus plagiarism tool provides all-in-one support to cover all your bases. The premium version of the software covers more futures.

With a single scan, you’ll receive personalized feedback to help identify potentially missing citations and help improve your sentence structure, punctuation, grammar, and more.

Noplag provides a detailed plagiarism report that you can send and share. So don’t let plagiarism issues slow you down anymore, deal with them in the fastest and most effective. it offers various services such as plagiarism checkers for universities, colleges, schools, students, teachers, and academics.

Viper Plagiarism Checker is an online plagiarism detection software that scans documents for potential plagiarism. It is used by students, teachers, and professionals to check for plagiarism in written work. It compares the content of a document to a vast database of online sources, including websites, journals, and other documents, to detect any potential plagiarism.

Copyleaks Plagiarism Checker is an online tool that helps you detect plagiarism in your content. It scans your content for plagiarism against billions of online sources and provides you with an instant report. It also helps you identify the sources of plagiarism and provides you with a detailed report on the plagiarism check. Copyleaks Plagiarism Checker can be used to check academic papers, articles, blog posts, and other types of content.

2 Best Paid Plagiarism Checkers for Thesis, Research paper, and Assignment (Recommended Versions)

Turnitin.com provides a premium version of services to students and institutions with 10 types of plagiarism based on findings worldwide.

Each type has been given an easy-to-remember moniker to help students and instructors better identify and discuss the ramifications of plagiarism in student writing.

iThenticate is the leading provider of professional plagiarism detection and prevention technology used worldwide by scholarly publishers and research institutions to ensure the originality of written work before publication. iThenticate helps editors and authors prevent misconduct by comparing manuscripts against its database of over 60 billion web pages and 155 million content items, including 49 million works from 800 scholarly publisher participants.

iThenticate helps editors and authors prevent misconduct by comparing manuscripts against its database of over 60 billion web pages and 155 million content items, including 49 million works from 800 scholarly publisher participants.

How to Choose the Best Plagiarism Checker s

When choosing a plagiarism checker, there are a few things you’ll want to consider:

• Price:  Plagiarism checkers can range in price from free to hundreds of dollars per year. Choose a plagiarism checker that fits your budget.
• Features:  Some plagiarism checkers offer more features than others. Make sure the plagiarism checker you choose has the features you need, such as a plagiarism report and a grammar checker.
• Ease of use:  Plagiarism checkers should be easy to use. Choose a plagiarism checker that’s easy to understand and navigate.
• Reliability:  Plagiarism checkers should be reliable. Choose a plagiarism checker that has a good reputation and that’s been used by others.

Plagiarism is a serious offense that can have a negative impact on your academic or professional career. To avoid accusations of plagiarism, it’s important to use a plagiarism checker to ensure that your work is original.

Ensuring the originality of your content is essential, and the best plagiarism checkers mentioned above can assist you in avoiding the severe consequences associated with plagiarism.

By considering factors such as content database size, user interface, additional features, and pricing plans, you can select the most suitable plagiarism checker to meet your specific needs. Invest in these reliable tools to enhance your writing integrity and achieve peace of mind.

There are many different plagiarism checkers available, so it’s important to choose the right one for your needs. In this article, we’ve compared the best plagiarism checkers of 2023 and helped you choose the one that’s right for you.

We hope this article helps you to choose the right plagiarism tool to check your thesis, research manuscript, and assignments.

You Might Also Love to Read 10 Types of Plagiarism – Every Academic Writer Should Know

• Turnitin: As a leading plagiarism detection tool, Turnitin excels in its comprehensive content database and its ability to provide links to original sources. It offers a user-friendly interface and is suitable for academic purposes.
• Grammarly: While renowned for its grammar-checking capabilities, Grammarly also offers a powerful plagiarism checker. It is versatile, capable of detecting plagiarism in various types of content, and provides helpful suggestions to improve language usage.
• Copyscape: Copyscape specializes in detecting duplicate content on the internet. With its robust search capabilities, it is an excellent tool for bloggers, website owners, and content creators.
• Plagscan: Plagscan stands out with its advanced plagiarism detection algorithms and integration options. It caters to both academic and professional users, offering accurate and detailed reports.
• DupliChecker: DupliChecker is a user-friendly plagiarism checker that allows you to scan text up to 1,000 words for free. Its simplicity and quick analysis make it suitable for casual users.
• Quetext: Quetext provides a reliable plagiarism detection system with an intuitive interface. Its extensive database and contextual analysis help identify similarities in content effectively.
• Small SEO Tools Plagiarism Checker: Small SEO Tools offers a free plagiarism checker that scans text for duplicate content. It provides a basic but useful service for quick plagiarism checks.
• Unicheck: Unicheck focuses on academic plagiarism detection, offering integration with various learning management systems. Its comprehensive reports and intuitive interface make it an excellent choice for educational institutions.
• Plagramme: Plagramme offers a user-friendly interface and accurate plagiarism detection. It provides detailed reports and is suitable for both academic and professional users.
• Scribbr Plagiarism Checker: Scribbr’s plagiarism checker is specifically designed for students, providing comprehensive reports and guidance to improve academic writing. It integrates seamlessly with other writing tools.
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Thesis Checker: Free Online Editor

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Why should you use an online thesis checker?

You’ve already done countless hours of research to write your thesis. You don’t want to spend countless hours correcting it, too.

You’ll sound professional

Wow your supervisors with how grammatically sound your writing is, how clear it is, and how well it flows.

You’ll save time

ProWritingAid’s thesis checker saves you hassle by acting as the first line of defense against pesky grammar issues.

You’ll become a better writer

Every time you run your thesis through ProWritingAid, you’ll see what your common mistakes are and how to fix them.

Professors and students love using ProWritingAid

Great tool for academic work. Easy to use and the reports and summary evaluation of your documents in several categories is very useful. So much more than spelling and grammar!

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If you’re an English teacher, you need to take a look at this tool—it reinforces what you’re teaching, highlights strengths and weaknesses, and makes it easier to personalize instruction.

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Only reason I managed to get an A in all my freshmen composition classes.

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Your first line of defense before submission

Save time on editing so you can focus on your research. ProWritingAid’s thesis checker helps you quickly and easily improve your grammar and style.

Academic writing made easier

Stop stressing over your first draft. Now you can improve any sentence in just a few clicks. Shorten sentences , correct informal language, expand your sentence variety, and add transitions.

Catch every easy-to-miss mistake

Typos and grammar errors can slip into anyone’s work. ProWritingAid’s AI-powered thesis checker can catch and fix even the trickiest issues so your ideas can shine.

In-depth analysis whenever you need it

Sure, that email might only need a cursory check. But a 100-page thesis needs more comprehensive reviews. Use our structure analysis , complex paragraph alerts , and transitions report to improve your work.

Write clearly, concisely, and accurately

Strike the right balance between clarity and academic rigor with analytical language goals and power verb suggestions . You can ensure your work is professional without sacrificing readability.

Get access to a library of expert resources

With ProWritingAid, you get more than just an app—you get the tools to become a better writer. Our in-app learning tool comes packed with helpful explanations for every suggestion.

Want more? Join our community or read our blog for advice from our resident experts on how to become a better writer.

ProWritingAid’s Thesis Checker FAQs

1. how do i use the online thesis checker.

Sign up for free, upload your thesis, and run any of ProWritingAid’s 20+ reports. You’ll see a number of suggestions that you can either accept or reject.

2. Does the essay checker work with British English and American English?

The thesis checker works with British English, American English, Australian English, and Canadian English. Just choose the one you’d like to use, and ProWritingAid will tailor its suggestions to match.

3. Is using a thesis checker cheating?

Not at all. The thesis checker won’t ever write the thesis for you. It will only point out possible edits and advise you on changes you need to make. You have full autonomy and can decide which changes to accept.

4. Is there a student discount?

Students who have an eligible student email address can get 20% off ProWritingAid Premium. Email [email protected] from your student email address to access your discount.

5. Can ProWritingAid check my thesis for free?

Absolutely. ProWritingAid offers a free membership to everyone, always, and you can edit up to 500 words at a time. If you need to edit more work, you can upgrade to Premium at any time.

6. Does ProWritingAid have a plagiarism checker?

Yes! ProWritingAid’s plagiarism checker will check your work against over a billion web-pages, published works, and academic papers, so you can be sure of its originality. Find out more about pricing for plagiarism checks here .

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How to avoid plagiarism?

Proper citation style.

Avoid plagiarism by always listing the source and formatting it correctly when you are note-taking. Take care of the proper formatting and citation style when using content from outside sources.

Write on your own

Avoid borrowing and overusing large pieces of the content from outside sources, especially from Wikipedia. Write your own thoughts and use sources only to support your opinion (remember to cite it though!).

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Plagiarism can get you expelled from your academic institution. Our professionals can take any assignment and rewrite it to be 100% unique.

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Online Plagiarism Checker For Students

Writing an academic paper can be challenging when you’re not sure if it’s original enough to pass a plagiarism check. Of course, students take information from various sites before writing their own text. Sometimes, it just so happens that certain parts are very similar to your resources, making your professor think that you’ve just copied work from somewhere. That’s why it’s crucial for any modern college or university student to ensure that their work has 100% original content to maintain academic integrity.

Luckily, a free plagiarism checker online can solve this issue quickly and easily. Many professional writing services use a plagiarism checker for research paper. However, students sometimes forget that they should too. But with so many options that pop up when you ask Google to “check my paper for plagiarism”, how do you choose the right one for detection? We’ve got the solution in the form of PapersOwl’s free plagiarism checker tool! Our simple tool makes it convenient to check any writing task without having to spend a dime. It works quickly and highly accurately, ensuring that you get the top grade you deserve. So, if you want to check plagiarism online before turning your task in, head over to our website and get started!

Accurate Check for Plagiarism with Percentage

Many students wishing to produce original content aren’t quite sure how to get an exact percentage of plagiarised text in their work. This percentage is important since many universities have a certain limit of non-unique words you can have in your essay for it to be considered okay. If your plagiarism search doesn’t give you the exact percentage, you can’t be sure if your assignment will go through or not.

When using a free plagiarism tool, it’s essential to have this data provided to you. Only when you have it can you decide which parts to change and which ones to chuck out to achieve your desired results. Plagiarized content is a big issue in modern educational institutions, so getting reliable and trustworthy results is vital. This is the most essential requirement when you check plagiarism.

PapersOwl’s plagiarism detection tool gives you all the information you need to fix plagiarized content. Whether you’ve fallen victim to accidental plagiarism or have tried to make your life easier by copying some text from different sources, you’ll get an accurate percentage with our plagiarism checker online. If you’re wondering how to check paper for plagiarism, it’s nothing complicated at all! Simply visit our site, paste your whole essay into the relevant text box or upload the text file, click on Check For Plagiarism, and you’ll get accurate plagiarism results in a matter of seconds. You’ll see the problematic parts with plagiarism detected highlighted, with links to where similar content exists. Our service with plagiarism detector will also give you the option to check my paper for plagiarism and then to hire a professional writer to fix your task quickly if you’re busy with other things!

The Fastest Plagiarism Checker Online

Gaining insight into duplicate content only works if you get your results quickly. There are so many free plagiarism software online that promise to do the job for you. However, a lot of them are clunky, slow, and inaccurate. How can you produce original work without similarity detection you can trust?

PapersOwl stands out in this regard because it will detect plagiarism in seconds. This is a plagiarism scanner that’s able to perform a Swift Check to give you a uniqueness check right there and then. It also conducts a Deep Search, going through millions of sources on the internet to check for plagiarism. A document of about 1500 words takes only about 10 seconds to get processed! You get a clear plagiarism score of how much text is plagiarized and how much is original. All the sources that your essay matches are listed based on how much similarity there is in your academic writing. And on top of that, you get a handy Make It Unique button that’ll take you to an order page where you can ask our expert writers to rewrite your work and make it 100% unique.

All of this is done almost instantly, allowing students to continue working on their assignments without missing a beat. Not every plagiarism detection software works this quickly, making ours the best one you’ll ever use.

Plagiarism Checker Helps Boost Your Grade

A lot of students make the mistake of considering their papers automatically free from plagiarism. After all, they’ve written it themselves, so how could it be problematic? What they don’t realize is that it’s very easy to borrow some information mistakenly. Turning such a paper in can cause multiple problems, as your professor might think you haven’t done the work at all.

That is why you should always use a plagiarism scanner to test for plagiarized content in your college papers. Our online plagiarism checker for students is designed for this exact purpose. A simple, free plagiarism check could help you check plagiarism, fix any mistakes you see, and submit high-quality text that no one will question.

Our plagiarism detector has a lot going for it. It makes plagiarism detection easier than ever before. Unlike copying and pasting each passage individually into Google, simply upload the whole file into our plagiarism checker free for students, and you don’t have to do anything else. All the matches are highlighted so you know what to change.

The plagiarism test will give you a uniqueness percentage too. This will help you figure out where you stand and how much time you need to adjust anything if required. So, using our copyright checker online free to check your writing is essential. This way, you’ll submit the task only when you’re sure it meets the level of uniqueness required by your school. As a result, your grades will drastically improve when you check for plagiarism.

Benefits of Free Plagiarism Checker for Students

Our professional online plagiarism checker work offers too many benefits to ignore. With our plagiarism detector, you can enjoy highly accurate results as a comprehensive report. The plagiarism checker for students is designed to help you achieve 100% uniqueness without hassle. Here are the key advantages you can enjoy when you check plagiarism free with our plagiarism detection tool:

It’s completely free! We know you are on a tight budget and should be able to check your paper for plagiarism without worrying about payments, so we’ve made the best similarity checker free for all!

Our software detects plagiarism swiftly. It’ll show you detailed results in as little as 10 seconds so you can continue working immediately.

The report from our plagiarism tool gives you access to all the links from where it has detected similarities in your work. You can head to the relevant sites and see which information you must rewrite to improve your results.

Our best free plagiarism checker doesn’t require any skills and presents its services in a simple-to-use interface that anyone can use.

The plagiarism test allows you to get professional help with your work if you’re short on time. Simply ask one of our writers to rewrite the problematic parts of your text and enjoy top grades.

With PapersOwl plagiarism detector, there’s no need to search the internet for an accurate tool. We have many satisfied students worldwide who can vouch for our plagiarism-checking services. Give our online plagiarism checker free tries as often as you want and see how easy it is to produce original essays without spending a penny!

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How Does Plagiarism Checker Work?

• If you already have a completed text, all you need is just to copy-paste the whole thing in the special box of the chosen plagiarism tool or website, choose suitable settings (if any), then press “check for plagiarism”. It is quite simple and takes just a few moments.
• Once you have pressed “check for plagiarism”, the system will analyze your text and compare it with different sources to find similarities. As a rule, the duration depends on the text’s length. A standard free online plagiarism checker with percentage can give you the result within five minutes or less.
• When the system finishes the work you will be transmitted to the reporting page – it contains the comprehensive report on your work, a percentage of its uniqueness, and a list of sources on which similarities were detected. Often, such tools also highlight the overlaps that were found.

As you can see, it is simple. However, for the best and reliable result you have to be careful. There are tons of programs and online tools that can be used but keep in mind that many of them work differently and not all are good for you. To be confident in the truthfulness of the received result, you need to select the best plagiarism checker because only a professional and high-quality software can detect all similarities and give you a reasoned assessment.

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Advantages Of Plagiarism Checker By CaPapersOwl

Why choose us? Our service offers a professional online plagiarism checker with report that will provide you with a comprehensive report to make you confident in the 100% uniqueness of your paper. Our free plagiarism checker for students guarantees the best check and here are the key advantages of using our tool that prove this:

You don’t need to pay anything to check your paper for plagiarism because we know the value of original and unique works.

One of the main benefits of our antiplagiat checker online is that it works so fast that you will not even have enough time to make yourself a cup of coffee while it analyzes your text, and it is safe!

We use the latest and the best algorithms and software in order to provide you with an advanced check and help you receive the high-quality papers.

It is simple in use and won’t take much time!

Many students have already confirmed that our free tool is a great and convenient feature that helped them detect and fix errors that could lead to a failure. With us, you will no longer need to look for a different scanner!

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Plagiarism Checker FAQ

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Personalized Writing Help When You Need it

Unintentional plagiarism, grammar mistakes, and uncited sources  can turn what you thought was a good paper into a poor one. When you’re writing a paper the last thing you want is for your message to get lost due to incorrect punctuation or confusing sentence structure. You know that the great ideas in your head would make for a standout paper, if only you could get them written clearly on the page. If this struggle sounds familiar, you’re not alone.

Great ideas may be an essential part of high-quality writing, but they’re not the only component. Excellent papers and essays clearly express strong ideas with good grammar, proper punctuation, spot-on spelling, and thorough, careful citations. While this may sound like a lot, your teachers and professors are grading you on your skills as both a writer and a researcher, which means your assignments will require an ethical and attentive approach. Luckily, there is no shortage of available tools to help you along your way.

You could use a plagiarism checker free, though, these tools often lack grammatical support. Given the high stakes and rigorous requirements, the aid of a plagiarism checker without the needed support of a grammar checker could mean the difference between an “A” paper and a “C” or even “D” paper.

Thankfully, the EasyBib Plus plagiarism tool provides all-in-one support to cover all your bases. Our premium essay checker is convenient, easy to use, and includes access to a grammar and spell checker, plus a plagiarism checker. With a single scan, you’ll receive personalized feedback to help identify potentially missing citations and help improve your sentence structure, punctuation, grammar, and more.

Not sure if that noun is spelled correctly, or if the preposition at the end of your sentence is grammatically correct? The EasyBib Plus plagiarism tool is your one-stop shop to help check plagiarism, get grammatical suggestions, correct spelling and punctuation errors, and help create polished papers you can be proud to turn in. And, we haven’t told you the best part yet: you can try our tool free and scan your work for grammar suggestions right now!

Access all the tools today!

A Grammar Check for Peace of Mind

You know that grammar plays a significant role in your assignments. Not only does it factor into your overall grade, but without clear and precise language, your ideas can lose their impact or might even be misunderstood entirely. Still, with so many different parts of speech and rules to learn and apply, it’s not uncommon to get them mixed up and find yourself questioning your knowledge now and again:

Can you use an adverb to modify a noun? (No. You need an adjective for that.)

Well, can you use it to modify a pronoun ? (Still no.)

What do they modify, then? (Almost everything else. Fun, right?)

Ugh. (That was an interjection .)

Does this have to be so difficult? (Nope!)

Scanning your paper with the EasyBib Plus writing tool delivers more than the basic punctuation and spell check functions that come standard in word processing programs. You’ll receive immediate, targeted feedback that can help improve the sentence structure and style of your writing. Not only can this help ensure that you don’t lose points off your grade for grammatical errors such as mismatched verb tense, but it can also help to clarify your meaning and strengthen your arguments by eliminating confusing punctuation and run-on sentences that confuse readers.

Reviewing your work to correct errors and refine the flow of your writing is a critical part of the revision process for novices and novelists alike. Even the most conscientious of wordsmiths might make mistakes, such as using a conjunctive adverb in place of a coordinating conjunction or pairing a plural determiner with an uncountable word. They likely appreciate a subscription-based or free grammar check as much as a beginning writer. That’s why the EasyBib Plus writing tool is designed for all writers, from students who are still learning the fundamentals to published professionals who get paid by the word.

The EasyBib Plus writing tool provides quick, targeted feedback that you can use to help improve your writing immediately. Also, our free resource library is available 24/7, just like the rest of our tools, to help you brush up on the areas that challenge you the most (Conjunctive what? Uncountable who?) That means you can continue to sharpen your skills and improve your writing over time, which will help make finishing your next project easier.

Ready to give your paper a boost? Sign up for EasyBib Plus or scan a paper right now for a free spell check—it’s easy!Just upload or copy and paste your paper to the online grammar check tool and, in a matter of seconds, you’ll be able to receive up to 5 feedback cards so you can begin polishing your draft.

To learn more about proofreading tools, you can find more info here. Or, for more tips on grammar, punctuation, and style, check out this useful reference .

Why is Grammar So Important, Anyway?

Why is grammar important? As long as others know what you mean, does it really matter if you use proper grammar? These are age-old questions, but the answers remain unchanged. Grammar is important for many reasons:

Communication:  Communication is about more than merely listening and talking. We communicate in myriad ways: with our voices, our mannerisms, our facial expressions, our actions, and frequently, our written words. Written communication is just as important as all the other ways we broadcast our thoughts and feelings. Unlike our other communication methods, though, written communication leaves a record. While most of us relax our style when talking to or texting friends, the fact remains that more formal venues require a more formal tone. Proper spelling, grammar, and punctuation are a necessary element of professional and academic writing, so running your work through a spelling and grammar check before you submit it is an absolute must.

Clarity:  Expressing your thoughts, ideas, and opinions is an uphill battle when you communicate them with less-than-stellar punctuation, spelling, and grammar. A missing or misplaced comma, for example, can entirely change your meaning:

• Call me Ishmael = My name is Ishmael.
• Call me, Ishmael = I want Ishmael to call me.

Spelling errors can result in similarly muddled meaning:

• Her shoes perfectly complemented her dress. = Her shoes and dress go well together.
• Her shoes perfectly complimented her dress. = Her shoes can both speak and engage in flattery.

Grammar deficiencies such as a dangling modifier yield similarly confusing results:

• I saw the girl’s purple backpack in the library. = The purple backpack belonging to the girl is in the library; I saw it.
• I saw the purple girl’s backpack in the library. = You know the girl who mysteriously turned purple? I saw her backpack in the library. This week has not been easy on her.

Credibility: Establishing your credibility is critical whether you’re writing for school or business. Proving that you can reliably communicate using proper grammar is essential to establishing and maintaining the trust of your teachers, professors, readers, customers, and colleagues.

To learn even more about the importance of English grammar in writing, check here .

What Happens After I Upload My Paper?

Once you upload a paper, the EasyBib Plus grammar checker scans your text and highlights grammar issues within your document so you can see it in context. For users running a grammar check and spell check using the grammar check free tool, up to the first 5 issues are shown. For subscription subscribers, all of the areas that require your review will be highlighted once the scan is complete.

No matter which version of the tool you’re using, your feedback will include detailed explanations so you can understand why the text was flagged. Other highlighted areas will include examples of how the issues can be fixed. Some will include a detailed explanation as to why the issue was flagged. This personalized feedback allows you to make an educated decision about whether to edit your text or dismiss the suggestion, so you’re always in control of your final draft.

Subscription users also have the plagiarism checker at their disposal when scanning their papers for style and grammar suggestions. Just as with our other writing tools, when you use the tool to check plagiarism, changes are never made without your review, so you are always in the driver’s seat. You can review each highlighted area as well as the sources of matching text and will always be given a choice to either accept or ignore both citation and grammar suggestions.

Whether you are a student or a professional, the EasyBib Plus tools are powerful allies that can help you improve your paper, establish credibility as a writer, and maintain an ethical writing process.

Try our checker free for 3 days to see what you think*. Trust us; you’ll wonder how you got along so far without it!

*See Terms and Conditions

Check for Unintentional Plagiarism

Persistent use of the best grammar checker and spell checker you can find will help to shape up the style and substance of your composition. However, to ensure the integrity of your work and root out unintentional instances of academic dishonesty, you’ll also need to incorporate a subscription-based or free plagiarism checker for students.

The ability to scan your paper and check plagiarism and grammar before submitting your work is an invaluable tool for students. It’s so valuable, in fact, that students are not the only ones who consistently use this type of software.

Many teachers and professors use a service to ensure that student papers are original and include properly formatted and sourced citations for all reference materials. For some, this may be a consistent element of their grading process, while others may utilize one only when they feel there is a reason to do so.

What Exactly Does a Plagiarism Checker Do?

If you’ve used an online plagiarism checker before, you may be familiar with the process that these tools employ. For those who have never used one, it can be helpful to understand how these tools work and what you should expect as a result of using one.

The most basic free tools will scan your paper and provide you with a percentage that indicates how much of your work is original. This feature can be useful to a point, as some instructors and institutions set a percentage for the amount of similar text that is considered acceptable. This policy does not mean that they are lenient about academic dishonesty but, instead, that they recognize that similar or even matching word choice is not always an indicator of copying.

However, some schools do not tolerate any form of incremental plagiarism, period. In these institutions, “check paper for plagiarism” is likely a standard action when grading all papers.

With a free plagiarism checker, the percentage of word-for-word plagiarism in your text may be the only feedback you receive. Moreover, some of these providers may wade in unethical waters, and offer essay writing services in conjunction with their checking services. This is why many students and teachers prefer subscription-based checkers that focus on integrity, such as the EasyBib writing tools.

With our premium tools, you get more than just supporting proof that your paper is original and in your own words. Your writing is scanned for potentially matching text and areas that needs your attention is highlighted. We’ll provide you with the source of the matching text so you can review it and decide how to proceed. If you agree that a citation is needed, our citation tools and resources will provide you with the information you need to help format and insert the new sources in your text as well as your works cited page.

How Does the EasyBib Plus Online Plagiarism Checker Work?

The EasyBib Plus writing tool provides an all-in-one spell check, grammar review, and plagiarism checker that not only helps you with the paper you’re writing now but enables you to gain new knowledge and improve your writing for the future, too.

Our essay checker searches online for phrases, sentences, or passages that are similar to those in your paper. If it returns matching text, this may indicate that you have passages that are missing citations.

Just as with many checkers, our tool will tell you how many instances of matching text it finds in your paper. Our plagiarism tool is designed to do more than most free tools, however.

When a portion of your paper is flagged for review, we provide you with the source that it matches. As with our online spell check tool, you have the power to review each area and choose how to proceed. If you decide to cite the flagged text, you can review the suggested source and access our citation tools to help create a proper citation and start building a bibliography for your paper. Or, you may determine that no citation is needed, in which case it’s simple to dismiss the suggestion and continue to the next section.

If you’re unsure about how to proceed, our library of resources can help you learn more and make an educated decision. In this way, you gain more than just the ability to correct your work; over time, you can learn how to avoid plagiarism altogether.

Reasons Your Teacher May Run Your Paper Through a Plagiarism Detector

As stated previously, your teachers and professors grade papers with a fixed process that includes “check paper for plagiarism” as a standard, across-the-board action. Others may check for plagiarism only when they feel there is cause to do so. There are a few red flags that may stand out to them while reviewing a paper that would lead to their running a plagiarism check, including:

Style/Voice:  Most teachers are familiar with the style and voice that you use in your writing. While most will hope that the feedback they provide when grading your work will help you to improve problem areas over time, a paper or essay that has a dramatically different style or voice than the work you’ve previously submitted can be a red flag.

Inconsistency:  Changes in the font, font size, formality, formatting, and more may indicate that portions of a paper have been copied and pasted. If these inconsistent passages are not presented as quotations or don’t include citations, this may further indicate to your teacher that there’s plagiarism in the paper.

Old References:  Part of a well-researched paper is verifying the legitimacy and relevance of your sources. While some older references may be acceptable depending on the topic, if all of your sources are outdated, it may lead your teacher to believe that you’ve recycled your own work or someone else’s.

Looking for a checker to try? With EasyBib Plus you get unlimited checks to give you peace of mind when turning in your papers!

What is Plagiarism?

If you’re looking for a free online plagiarism checker , you’re already aware that it’s not something you want to be found in your papers. However, you may still be wondering: what does plagiarism mean? It’s a reasonable question and one that merits exploring. After all, some of the actions and circumstances that fall within the plagiarism definition come as a surprise to those who only learn that they’ve committed them after it’s too late.

So what is plagiarism? To define plagiarism in the most basic sense, you might say that it is taking someone else’s ideas and words and passing them off as your own.

If your goal is avoiding plagiarism entirely, you’ll need to go beyond the basics to thoroughly define plagiarism, recognize it, and keep clear of it. Some examples of plagiarism that students find surprising include forgotten citations, poor paraphrasing, and re-submitting your own work in whole or in part for more than one assignment. This useful article provides more help in recognizing and understanding the different forms that academic dishonesty can take.

Of course, using your own words and ideas does not count as plagiarism, nor does using common knowledge . Basically, common knowledge is information that is well known by the average person. Examples of common knowledge:

• there are 12 months in a year
• the freezing point of Celsius is zero degrees
• Socrates was a Greek philosopher

So should you only include your original thoughts and common knowledge in your papers? Of course not! Research-based assignments are meant to demonstrate your skills as a researcher, after all, as well as your ability to build upon the work of others to formulate new ideas. To avoid accidentally committing an act that falls within the plagiarism definition when you’re using another person’s words or ideas, though, you need to give them proper credit. This means you’ll need to clearly identify direct quotations or properly paraphrase them when including them in your paper.

Regardless of your approach, you’ll also need to cite your sources according to the style your professor specifies. Generally, you will use MLA format for the arts and humanities and APA format for the sciences, but it’s always best to check with your instructor when you’re unsure.

If you know what style to use but still aren’t sure how to create your citations, don’t fret! Our library of resources includes free guides to help you learn about various styles so you can properly structure and place them. And our premium tools not only help you check grammar, spelling, and originality in your papers, but subscribers also enjoy access to our citation creation tools!

What are the Different Types of Plagiarism?

In addition to the question “what is plagiarism,” you may also be wondering, “why do students plagiarize?” While some students do intentionally plagiarize because they believe they can pass off someone else’s work as their own to avoid spending time on their assignments, many others do so accidentally. They may not understand how broad the plagiarism definition is or they haven’t learned how to research and cite their sources properly. That is why it is vital to recognize plagiarism in all of its forms if you wish to ensure the integrity of your work.

Examples of plagiarism & How to prevent it

Direct plagiarism:

Intentionally copying another person’s work without including a citation that gives credit to the source. When most students are asked to identify potential plagiarism examples and behaviors, this direct and deliberate act is what they think of first.

• Prevention: If you use an idea or quote from another source, cite it in the text. Make it clear that it was not your own words. 

Incremental plagiarism:

Copying parts of another person’s work, such as phrases, sentences, or paragraphs without crediting the source. When deciding which tools to use to check a paper for plagiarism , instructors often seek out those that will identify incremental forms as well as instances of direct copying and similar phrasing.

• Prevention : Decide to either directly quote the phrases or sentences you want to use, or write a good paraphrase. In both cases, be sure to add a citation. Using a plagiarism checker could also help you identify problematic passages.

Self-plagiarism:

Academic self-plagiarism occurs when a student submits the same paper or parts of a paper for more than one assignment. When your instructors are grading your papers, they’re assessing your research and writing skills in the present. When you submit work that you completed in the past, they are both unable to evaluate your current skills and unaware that you haven’t completed the assignment.

• Prevention: Write a new paper for each assignment you’re assigned. If you feel strongly that your past work could enhance your new paper, speak to your instructor and ask for permission first.

Misleading citations:

Including a citation for a quote or idea that misrepresents the source material. This can occur if a student does not understand the reference they are citing; if a student includes a citation for a disreputable source; or the source material simply does not align with the idea or argument that the student has attributed to it.

• Prevention: Carefully review your assignment to understand it. As you research, take the time to evaluate each source notes . Remember, it’s better to have quality citations over an abundance of citations.

Invented sources:

If a reference in a student’s bibliography is found not to exist, it is considered an invented source. This may occur if a student couldn’t find a reputable source to back their argument, or if they needed to include additional references to meet the requirements of the assignment and chose to take an unethical shortcut rather than completing the required amount of research. No matter the reason, this behavior ultimately hurts them in the long run. Not only will they fail to gain the experience they need to conduct research in the future properly, but they’ll also experience significant consequences if they’re caught.

• Prevention: Set aside time to do proper research so you can find enough sources. Start creating a list of sources as you’re researching and take good notes. This will help you keep track of your sources so none are forgotten. If you do end up forgetting where a quote came from, a paper checker could help you pinpoint the original source. 

Patchwriting/Spinning:

Patchwriting is often confused with paraphrasing, but there’s a significant difference. When you paraphrase, you demonstrate that you understand the topic well enough to restate it in your own words. When you patchwrite or spin, it is more akin to a word-swapping game; there’s no need to understand the subject, merely to have access to a thesaurus so you can substitute enough synonyms to mask the source material. This can be intentional, but it may also be a result of having a poor understanding of how to paraphrase.

• Prevention: Using your own words, write down the key points of the phrase or idea, and put them together in a sentence. Be sure to include a citation as well. 

A good way to test if you’re patchwriting or paraphrasing is to remove your sources from view. If you can write about what you’ve read without looking at the source material, you likely understand it well enough to paraphrase it. If you have to review the source material with each new sentence or consult a thesaurus while writing about it (except when you’re adding direct quotations), you may be spinning your sources instead of paraphrasing them.

Academic Integrity Policies and Statements

If you’re still uncertain about what counts as plagiarism, look for your school’s/ organization’s policies on academic integrity and plagiarism. The policies of academic institutions usually cover what is considered plagiarism, the consequences of committing it, and how to avoid it. One great example is Purdue University’s Academic Integrity statement .

What are the Consequences of Plagiarism?

No matter the setting, plagiarism is not taken lightly, and the consequences can be significant. For a good reason, too! Whether in an academic or professional setting, the plagiarism consequences reflect the seriousness of the act, which is ultimately a form of theft that hurts everyone involved.

Just as with the theft of a tangible object, there can be legal punishments for plagiarism. It is, after all, a form of copyright infringement in many instances. A quick search for plagiarism articles will reveal that professional instances of intellectual theft have resulted in civil lawsuits and can even be criminally prosecuted under rare circumstances. In addition to the possible legal consequences, professionals may lose their jobs or have to start over in a new field after their acts of fraud are uncovered.

As a student, you’re likely to wonder what happens if you plagiarize in college or high school. While there will almost always be consequences for this behavior, there is no one-size-fits-all plagiarism sentence. Depending on the circumstances, academic dishonesty could result in outcomes such as:

• You might get a zero for the assignment in which the infringement occurred.
• You may receive a failing grade for the class. If it is a required course, this could leave you without enough credits to move on to the next level until you can repeat it and, in some instances, postpone graduation.
• You may be expelled from your school or university.

The academic dishonesty may be noted on your transcript, which can lead to you not getting into your preferred college, graduate school, or Ph.D. program in the future.

Nobody wants to be known as a fraud or to have a reputation for dishonesty follow them through their career. And, given the consequences that can extend beyond just their reputation, it’s no wonder that professional and academic writers who wish to avoid them take the time to understand the complete definition of plagiarism and run their work through a plagiarism checker before sending it out into the world.

Even the vigilant can fall prey to inferior tools, unfortunately. Before selecting a plagiarism checker, you should understand how they work and what they can (and cannot) detect.

How We Check for Plagiarism

When exploring how to check for plagiarism, most students and professionals conclude that including a checking tool in their revision process is not only helpful but necessary. When you consider the Herculean task of checking each line of your paper against the text of each of your resources, the benefits of a checker are clear. Moreover, this manual approach would only alert you to matching text in the sources you’re aware of, after all, and leaves the sources you haven’t reviewed untouched.

But, hang on. Why would sources you haven’t reviewed factor into your review? The answer to this lies in the plagiarism definition you learned above. What is plagiarism? It’s presenting someone else’s work or ideas as your own, intentionally or otherwise. It is not uncommon to uncover an idea while you’re researching a topic and later misremember it as your own. This might even occur years after you originally came across it.

You might wonder: how can plagiarism be avoided if you have to account for the source of every thought you include in your work? A few exceptions minimize the scope of this. Common knowledge about your topic does not need to be supported by a citation, nor does knowledge that you gained through your personal experience. Using a subscription-based or free plagiarism checker will help you locate any passages that may fall into these categories so you can review them and decide for yourself whether a citation is needed.

EasyBib Plus writing tools provide easy, convenient, and reliable support to help you find potentially missed citations and can help you improve your paper into a high-quality paper with integrity. Simply upload your paper, select the checker, then sit back and relax as the site scans your document. In mere moments, we’ll search the web for passages of similar text and highlight duplicate content for your review.

Regardless of the tools you use to help you revise and polish your work, it’s ultimately your responsibility to ensure that you’re writing and submitting ethical work. That’s why our tools go beyond the basics and require your participation. The tool never automatically makes changes to your paper, but only flags sections that may need your attention and provides you with the matching source so you can to make an educated decision.

If you find that a citation is needed, our citation tools can help you create properly formatted citations and develop a complete bibliography. And, if you review the passage and determine that the match is coincidental, you can dismiss the alert and move on to the next.

Seamless Citation Creation

Professional writers and students alike can find creating citations incredibly confusing. Nevertheless, they are an integral part of a well-written and researched paper and a requirement in almost all academic settings. But, have you ever wondered why they are so important? Citations really do have a purpose—other than driving us crazy— that make it necessary always to cite our sources.

We cite our sources for a few important reasons:

We need to give credit where credit is due. When you use a quote from someone else’s work, you need to give credit for using their words and ideas. Research is often based on the works and ideas of others. However, to include the words and ideas of another without giving them proper credit is to plagiarize, even if the act was unintentional.

In addition, showing that you’ve done proper research by including in text & parenthetical citations and a comprehensive list of sources to back up your arguments gives your work a layer of credibility that can help you earn the trust of your reader or teacher.

Readers can find the sources you used.  When you’re writing high school or undergraduate papers, your only readers may be your instructors and peers. However, including citations at every level of writing helps to ensure that anyone who reads your work can access your sources to check their accuracy, learn more about your topic, and further their own research.

Sources can take your research and learning to the next level, too. When you are conducting research on a topic, checking the works cited or annotated bibliographies prepared by your sources can lead you down new avenues in your research to further develop your ideas and help you write your papers.

Correctly utilizing citations gives strength to your thoughts and opinions. Understanding the value of citations does not, unfortunately, make them any easier to create. We know how confusing it can be, but don’t throw in the towel on learning how to cite websites in MLA , create your APA citation website references, or format your works cited —this is where we come in!

While a free online plagiarism detector may tell you how much of your work is unoriginal and may even identify the passages that meet their plagiarize definition, a premium EasyBib Plus plagiarism checker account also gives you access to our powerful citation resources and generator so you can:

Scan your papers with the plagiarism tool to check for plagiarism-free work before you submit.

Review flagged passages to determine if they meet the plagiarism definition and create unlimited citations in APA format and MLA format for anything fitting the plagiarism meaning. Need more styles ? Check out our regular citation generator for thousands of choices and free resources to help you learn how to create an APA parenthetical citation , APA book citation , APA works cited , and so much more!

Build a full bibliography for your paper right along with your parenthetical or in-text citations, which can save you hours of work along the way compared to manually creating and formatting them.

How Else Do We Help You Improve Your Paper?

The EasyBib Plus plagiarism detector helps you check your content or paper for text that may be missing a citation—which may fall within the definition of plagiarism—to help ensure you don’t accidentally plagiarize. It also includes grammar check and spelling check tools to help identify errors and suggest grammatical tweaks that could help to elevate the level of your writing.

Running a plagiarism check couldn’t be easier! Just upload your paper to the online proofreader, and in a few moments we’ll have your writing and citing suggestions. And, there’s no need to worry about your paper after it’s been scanned.

Run a Grammar and Spell Check for Free!

There’s no denying that your schoolwork can be challenging at times, and your assignments can lead to some late nights even when you’ve started them early. The last thing you want is to submit assignments that don’t reflect your best effort, but it can occasionally be quite the juggling act to get everything done on time.

Why not let our plagiarism checker free up space on your calendar by helping you revise your papers quickly and efficiently? The EasyBib Plus paper checker is your one-stop shop to check for plagiarism, create citations, spot spelling mistakes, and receive feedback on your grammar and style.

When you proofread and do a manual spelling check on work that you’ve written, you’re more likely to overlook mistakes. This is even more likely if you’re pressed for time or trying to complete several different assignments at once. There are tricks to help minimize this, such as reading your work aloud to identify poor grammar or reading each sentence backward to find spelling errors. When time is of the essence, though, these solutions aren’t the most convenient or useful options. That’s why many students seek the assistance of online tools that will run a grammar and plagiarism check on their work.

Are you asking yourself, “ How do I check my grammar online ?” We’ve got the perfect checker for you! Our advanced tools help you find and correct grammar, spelling, and punctuation mistakes. Our targeted feedback and free writing and citing resources help you learn as you go to improve your writing over time.

The best part? You can use our grammar and writing tools any time of the day, any day of the year for! Looking to try it? Just upload or copy and paste your text into our online proofreader for a free grammar check with up to 5 suggestions, or sign up for EasyBib Plus today! EasyBib Plus gives you use of the plagiarism checker and unlimited access to suggestions that can help improve your spelling, sentence structure, punctuation, writing style, and grammar.

Published February 3, 2019. Updated April 9, 2020.

Written and edited by Michele Kirschenbaum and Melissa DeVrieze Meyer . Michele is a school library media specialist and the in-house librarian at EasyBib. You can find her here on Twitter. Melissa is a professional writer and editor based in New Jersey. She writes for academic brands and independent publishers about writing, grammar, and literature, and creates study and curriculum materials for ESL learners. You can find her on Twitter .

Visit our EasyBib Twitter feed to discover more citing tips, fun grammar facts, and the latest product updates.

What Is the Best Free Plagiarism Checker?

Make sure that your work is original with these free online plagiarism checkers. Check URLs, documents, and more.

Quick Links

What is plagiarism, what are the different types of plagiarism.

Make sure that you haven’t copied someone else’s work with a plagiarism checker. Keep reading to discover some free websites to check for plagiarism and avoid any potentially serious repercussions. You’ll also learn about the different types of plagiarism.

When we talk about plagiarism, we usually refer to copying someone else’s work. Sometimes, plagiarism involves copying and pasting content from elsewhere without changing any part of the text. However, improperly paraphrased content without citation is also considered plagiarism.

The consequences of plagiarism are often very serious. Other people’s work is often copyrighted, meaning that you can potentially face legal action for copying and pasting work—especially if the website has a clear “you may not reproduce my work without permission” message (or something similar).

Even if you don’t face legal consequences for plagiarism, it’s important to avoid such practices. Schools and colleges usually have a zero-tolerance approach to this particular act; if you’re found guilty of plagiarism, you may automatically fail your assignment and—in serious cases—be removed from your course altogether.

Plagiarism is also not tolerated in the workplace. At best, you’ll receive a stern warning (especially if you work in a content marketing or journalism-related field). But in some cases, plagiarism can result in an instant dismissal.

Plagiarism isn’t always easy to spot, and there are several types. To help you ensure that you don’t accidentally or intentionally plagiarize, we’ll cover some of the most common versions below.

1. Paraphrasing

Paraphrasing is one of the most common forms of plagiarism, and it involves copying and pasting work published by someone else—but rewording it. However, it's worth noting that paraphrasing isn't always considered plagiarism. If you provide credit to the original creator, you normally won’t be plagiarizing their work.

2. “Consensual” Plagiarism

Do you remember the “copy but change it a little” memes that refer to homework assignments? If you actually copy your friend’s homework, that’s a form of plagiarism (even if you change it a little).

Purchasing essays or coursework written by someone else can also constitute plagiarism in some situations.

3. Accidental Plagiarism

It’s easy to think that all plagiarism is done in bad faith, but this isn’t true. Sometimes, you can unknowingly plagiarize—and it’s a good idea to check before submitting any piece of work. Not citing sources is one example of accidental plagiarism.

How you cite these sources depends; for college essays, you can often use a bibliography. When writing online articles, it’s wise to link back to the original source in your text.

4. Explicit Plagiarism

This form of plagiarism is what you probably associate the term with. Explicit plagiarism is when someone copies and pastes an entire project but claims it’s their own. You’re also committing this kind of plagiarism if you only copy and paste sections.

While these are some of the most common forms of plagiarism, they aren’t the only ones. It’s also worth noting that you can use plagiarism checkers for specific programs, such as these plagiarism checkers for Google Docs .

Now that you have a better understanding of what plagiarism is (and some of the most common forms), let’s look at some free websites to check for plagiarism. Below are our tried-and-tested favorites.

1. Grammarly

There are several reasons to use Grammarly as a writer , and checking for plagiarism is one of them. While you need a subscription for unlimited access to Grammarly’s features, it does have a free plagiarism checker that lets you check texts up to 10,000 characters long.

You can either copy and paste your text into Grammarly via the box provided or upload a file. If you choose the former, follow these instructions:

If you want to use Grammarly for all of your writing efforts, consider checking out this Grammarly vs. Quillbot comparison before committing to any platform. Pricing for Grammarly Premium starts at $12 per month.

2. Copyscape

Copyscape is one of the most renowned plagiarism detection tools. If you can’t afford the full version, the website lets you check for plagiarism for free in a limited capacity. With Copyscape, you can enter a URL and see if there are other copies of your page online.

Another useful feature in Copyscape is the ability to compare two pages or articles alongside each other. Enter the URL or text and press Compare Items to get a full overview.

Copyscape also has a premium version that costs $0.03 for the first 200 words of your text, plus an extra $0.01 for every 100 words thereafter.

3. Plagiarisma

Plagiarisma is a completely free website that checks for plagiarism, and you can check for plagiarized content on both Google and Bing. The tool supports more than 190 languages, including English, French, Swedish, and German. Besides copying and pasting your text, you can also search by pasting any URLs you want to check.

Once you’ve searched for your text in Plagiarisma, you can scroll down to see a percentage of how unique your text is. You’ve got the option to upload files in .docx and numerous other formats, too.

4. PapersOwl

PapersOwl is an alternative to Plagiarisma if you want a free plagiarism checker, and its website layout is a little more user-friendly than the previously-mentioned version. When using PapersOwl, you can enter your title and the text of your article. Copy and paste both before tapping Check for Plagiarism .

Once you’ve submitted your text for plagiarism checking, you’ll see a percentage of what’s unique—and what’s similar—within a few seconds. You can then type your changes in the text box and paste them back into your project.

5. Duplichecker

If you want another website that checks plagiarism for free, make sure you take a look at Duplichecker. The program lets you upload files from Google Drive and Dropbox, in addition to copying and pasting your text for a plagiarism check. You can also upload files from your computer if you prefer.

Duplichecker lets you search for plagiarism from URLs as well.

Once you’ve submitted your text for a plagiarism check, you’ll see how original your content is. With the free version, you can check up to 1,000 words; you can upgrade to Pro (from $25 per month) for more flexibility.

You’ll find several free websites to check for plagiarism, and it’s a very good idea to do this every time you need to submit a major project. Doing so will help keep you out of trouble and ensure that your work is original. Start with this list and upgrade later if needed.

More Teachers Are Using AI-Detection Tools. Here’s Why That Might Be a Problem

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As ChatGPT and similar technologies have gained prominence in middle and high school classrooms, so, too, have AI-detection tools. The majority of teachers have used an AI-detection program to assess whether a student’s work was completed with the assistance of generative AI, according to a new survey of educators by the Center for Democracy & Technology . And students are increasingly getting disciplined for using generative AI.

But while detection software can help overwhelmed teachers feel like they are staying one step ahead of their students, there is a catch: AI detection tools are imperfect, said Victor Lee, an associate professor of learning sciences and technology design and STEM education at the Stanford Graduate School of Education.

“They are fallible, you can work around them,” he said. “And there is a serious harm risk associated in that an incorrect accusation is a very serious accusation to make.”

A false positive from an AI-detection tool is a scary prospect for many students, said Soumil Goyal, a senior at an International Baccalaureate high school in Houston.

“For example, my teacher might say, ‘In my previous class I had six students come up through the AI-detection test,’” he said, although he’s unsure if this is true or if his teachers might be using this as a scare tactic. “If I was ever faced with a teacher, and in his mind he is 100 percent certain that I did use AI even though I didn’t, that’s a tough scenario. [...] It can be very harmful to the student.”

Schools are adapting to growing AI use but concerns remain

In general, the survey by the Center for Democracy & Technology, a nonprofit organization that aims to shape technology policy, with an emphasis on protecting consumer rights, finds that generative AI products are becoming more a part of teachers’ and students’ daily lives, and schools are adjusting to that new reality. The survey included a nationally representative sample of 460 6th through 12th grade public school teachers in December of last year.

Most teachers—59 percent—believe their students are using generative AI products for school purposes. Meanwhile, 83 percent of teachers say they have used ChatGPT or similar products for personal or school use, representing a 32 percentage point increase since the Center for Democracy & Technology surveyed teachers last year.

The survey also found that schools are adapting to this new technology. More than 8 in 10 teachers say their schools now have policies either that outline whether generative AI tools are permitted or banned and that they have had training on those policies, a drastic change from last year when many schools were still scrambling to figure out a response to a technology that can write essays and solve complex math problems for students.

And nearly three-quarters of teachers say their schools have asked them for input on developing policies and procedures around students’ use of generative AI.

Overall, teachers gave their schools good marks when it comes to responding to the challenges created by students using generative AI—73 percent of teachers said their school and district are doing a good job.

That’s the good news, but the survey data reveals some troubling trends as well.

Far fewer teachers report receiving training on appropriate student use of AI and how teachers should respond if they think students are abusing the technology.

• Twenty-eight percent of teachers said they have received guidance on how to respond if they think a student is using ChatGPT;
• Thirty-seven percent said they have received guidance on what responsible student use of generative AI technologies looks like;
• Thirty-seven percent also say they have not received guidance on how to detect whether students are using generative AI in their school assignments;
• And 78 percent said their school sanctions the use of AI detection tools.

Only a quarter of teachers said they are “very effective” at discerning whether assignments were written by their students or by an AI tool. Half of teachers say generative AI has made them more distrustful that students’ schoolwork is actually their own.

A lack of training coupled with a lack of faith in students’ work products may explain why teachers are reporting that students are increasingly being punished for using generative AI in their assignments, even as schools are permitting more student use of AI, the report said.

Taken together, this makes the fact that so many teachers are using AI detection software—68 percent, up substantially from last year— concerning, the report said.

“Teachers are becoming reliant on AI content-detection tools, which is problematic given that research shows these tools are not consistently effective at differentiating between AI-generated and human-written text,” the report said. “This is especially concerning given the concurrent increase in student disciplinary action.”

Simply confronting students with the accusation that they used AI can lead to punishment, the report found. Forty percent of teachers said that a student got in trouble for how they reacted when a teacher or principal approached them about misusing AI.

What role should AI detectors play in schools’ fight against cheating?

Schools should critically examine the role of AI-detection software in policing students’ use of generative AI, said Lee, the professor from Stanford.

“The comfort level we have about what is an acceptable error rate is a loaded question—would we accept one percent of students being incorrectly labeled or accused? That’s still a lot of students,” he said.

A false accusation could carry wide-ranging consequences.

“It could put a label on a student that could have longer term effects on the students’ standing or disciplinary record,” he said. “It could also alienate them from school, because if it was not AI produced text, and they wrote it and were told it’s bad, that is not a very affirming message.”

Additionally, some research has found that AI detection tools are more likely to falsely identify English learners’ writing as produced by AI

Low-income students may also be more likely to get in trouble for using AI, the CDT report said because they are more likely to use school-issued devices. Nearly half the teachers in the survey agree that students who use school-provided devices are more likely to get in trouble for using generative AI.

The report notes that students in special education use generative AI more often than their peers and special education teachers are more likely to say they use AI-detection tools regularly.

Research is also finding that there are ways to trick AI detection systems, said Lee. And schools need to think about the tradeoffs in time and resources of keeping abreast with inevitable developments both in AI, AI-detection tools , and students’ skills at getting around those tools.

Lee said he sees why detection tools would be attractive to overwhelmed teachers. But he doesn’t think that AI detection tools should alone determine whether a student is improperly using AI to do their schoolwork. It could be one data point among several used to determine whether students are breaking any—what should be clearly defined—rules.

In Poland, Maine, Shawn Vincent is the principal of the Bruce Whittier middle school, servingabout 200 students. He said that he hasn’t had too many problems with students using generative AI programs to cheat. Teachers have used AI-detection tools as a check on their gut instincts when they have suspicions that a student has improperly used generative AI.

“For example, we had a teacher recently who had students writing paragraphs about Supreme Court cases, and a student used AI to generate answers to the questions,” he said. “For her, it did not match what she had seen from the student in the past, so she went online to use one of the tools that are available to check for AI usage. That’s what she used as her decider.”

When the teacher approached the student, Vincent said, the student admitted to using a generative AI tool to write the answers.

Teachers are also meeting the challenge by changing their approaches to assigning schoolwork, such as requiring students to write essays by hand in class, Vincent said. And although he’s unsure about how to formulate policies to address students’ AI use, he wants to approach the issue first as a learning opportunity.

“These are middle school kids. They are learning about a lot of things this time in their life. So we try to use it as an educational opportunity,” he said. “I think we are all learning about AI together.”

Speaking from a robotics competition in Houston , Goyal, the high school student from Houston, said that sometimes he and his friends trade ideas for tricking AI-detection systems, although he said he doesn’t use ChatGPT to do the bulk of his assignments. When he uses it, it’s to generate ideas or check grammar, he said.

Goyal, who wants to work in robotics when he graduates from college, worries that some of his teachers don’t really understand how AI detection tools work and that they may be putting too much trust in the technology.

“The school systems should educate their teachers that their AI-detection tool is not a plagiarism detector [...] that can give you a direct link to what was plagiarized from,” he said. “It’s also a little bit like a hypocrisy: The teachers will say: Don’t use AI because it is very inaccurate and it will make up things. But then they use AI to detect AI.”

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Frequently asked questions

The act of putting someone else’s ideas or words into your own words is called paraphrasing, rephrasing, or rewording. Even though they are often used interchangeably, the terms can mean slightly different things:

Paraphrasing is restating someone else’s ideas or words in your own words while retaining their meaning. Paraphrasing changes sentence structure, word choice, and sentence length to convey the same meaning.

Rephrasing may involve more substantial changes to the original text, including changing the order of sentences or the overall structure of the text.

Rewording is changing individual words in a text without changing its meaning or structure, often using synonyms.

It can. One of the two methods of paraphrasing is called “Fluency.” This will improve the language and fix grammatical errors in the text you’re paraphrasing.

Paraphrasing and using a paraphrasing tool aren’t cheating. It’s a great tool for saving time and coming up with new ways to express yourself in writing.  However, always be sure to credit your sources. Avoid plagiarism.  

If you don’t properly cite text paraphrased from another source, you’re plagiarizing. If you use someone else’s text and paraphrase it, you need to credit the original source. You can do that by using citations. There are different styles, like APA, MLA, Harvard, and Chicago. Find more information about citing sources here.

Paraphrasing without crediting the original author is a form of plagiarism , because you’re presenting someone else’s ideas as if they were your own.

However, paraphrasing is not plagiarism if you correctly cite the source . This means including an in-text citation and a full reference, formatted according to your required citation style .

As well as citing, make sure that any paraphrased text is completely rewritten in your own words.

Plagiarism means using someone else’s words or ideas and passing them off as your own. Paraphrasing means putting someone else’s ideas in your own words.

So when does paraphrasing count as plagiarism?

• Paraphrasing is plagiarism if you don’t properly credit the original author.
• Paraphrasing is plagiarism if your text is too close to the original wording (even if you cite the source). If you directly copy a sentence or phrase, you should quote it instead.
• Paraphrasing  is not plagiarism if you put the author’s ideas completely in your own words and properly cite the source .

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