how to check if your essay is plagiarized

Free Plagiarism Checker by Quetext

Online plagiarism checker: how it works, enter text into plagiarism detector.

Our plagiarism detection tool, featuring DeepSearch™ Technology, provides a simple and effective method for checking plagiarism. Just copy and paste your content into the tool, then click the 'Check Plagiarism' button.

Check for plagiarism

Quetext’s online tool identifies any potentially plagiarized content throughout your document by running the text through three steps:

1. Contextual Analysis
2. Fuzzy Matching
3. Conditional Scoring

Evaluate plagiarism report

After evaluating the text against billions of internet sources, our plagiarism software will share your plagiarism results, including a score showing the percentage of text that is an exact or near-match to existing text online. (The higher the score, the more plagiarism found in your content!)

Resolve plagiarism risk and add citations

Our ColorGrade™ feature color-codes exact and near matches, letting you address plagiarism by modifying or citing the source. The "Cite Source" tool generates citations in MLA, APA, and Chicago formats for direct insertion into your document.

Plagiarism Checker Chrome Extension

Check the originality of webpage copy directly from your Google Chrome browser with our free plagiarism checker Chrome extension.

Benefits of Doing a Plagiarism Check

Whether producing original content or verifying that of others, there’s a lot to gain from using a plagiarism checker. An accurate, user-friendly plagiarism scanner provides real-time, automatic detection of duplicate content, facilitating the copy-checking process for teachers, students, content writers, and more. Results showing the exact percentage of plagiarized content allow users to see exactly how much text has been copied and where they need to re-word, thus helping to avoid unintentional plagiarism.

For Teachers

Our tool ensures academic integrity by verifying students’ work for originality, aiding educators in grading. From K-12 to higher education, it automates plagiarism checks, freeing teachers to prioritize work quality over originality scrutiny in academic and research papers.

For Students

The prevalence of academic plagiarism is increasing, often unintentionally. A reliable online plagiarism checker offers students peace of mind when submitting academic papers. It's easier to check for potential plagiarism before submission than to defend your writing later. Quetext ensures accurate results and helps students cite sources with its built-in citation generator.

For Copywriters

Plagiarism risk extends beyond academia to business and individual writing. Copied content is a concern for content writers tasked with creating original content on diverse topics. Our plagiarism checker swiftly prevents copyright infringement, ensuring bloggers and writers maintain integrity. Checking lengthy pieces takes minutes, safeguarding companies’ public content and writers’ reputations.

Quetext’s Online Tool Has It All:

AI detector
Expanded citation generator
Individual or team plans
Bulk file uploads
Spelling & grammar checker
100,000 total words/month per user
Downloadable originality reports
Source exclusion

What is AI Plagiarism Detection?

As AI tools advance, creating content that mimics original work can now constitute plagiarism. This underscores the necessity for AI-driven detection tools. Our AI content detector uses sophisticated algorithms to scan and compare vast databases, ensuring accurate identification of plagiarized content. Employing an AI plagiarism checker like these is crucial to maintain integrity in academic and professional spheres, safeguarding against unintentional or deliberate plagiarism.

Plagiarism Checker FAQ

What is plagiarism.

Plagiarism is the act of representing someone else’s work as your own. In educational contexts, definitions vary by institution. It includes direct copying, improper paraphrasing, and self-plagiarism, where one reuses their own work without citation. Plagiarism violates academic integrity and journalistic ethics. In academic writing, producing original work and appropriately crediting sources prevents plagiarized content. Accidental plagiarism occurs when sources are unintentionally cited incorrectly, underscoring the importance of understanding citation practices. Maintaining originality and avoiding plagiarism not only uphold academic integrity but also contribute to creating original content that advances knowledge and scholarship.

What percentage of a paper can be plagiarized (or copied) and still be considered unique?

Generally speaking, similar or exact copies of another source should be kept under 15% for the total text of the article/paper/essay. As a best practice, citations should be used whenever using another original source word-for-word.

What’s the difference between deliberate and accidental plagiarism?

Deliberate plagiarism is purposely copying works from books, articles, webpages, or someone else’s paper and representing it as your original work. Alternatively, accidental plagiarism occurs in a few different ways:

Incorrectly citing another person’s works
Failing to paraphrase another person’s works - even when citing it correctly
Reusing your own previous papers and inadvertently representing it as a new idea

A plagiarism checker works by comparing the submitted copy against known existing content. This sort of similarity checker flags instances of duplicate content, allowing the writer to modify those areas to avoid any claims of plagiarism.

What are the consequences of plagiarism?

The consequences of plagiarizing another person’s work vary by profession. For Students: Maintaining academic integrity is crucial. Students must ensure their work is not plagiarized. Consequences include failing grades, removal from classes, or expulsion. Even if allowed to stay, students may face mistrust and scrutiny. For Copywriters: Copywriters must produce original content. Plagiarized content can damage their reputation and make it hard to get assignments. Ensuring 100% originality is their responsibility. For Journalists: Journalists must uphold high standards of integrity. Plagiarized content erodes trust with readers and publishers, potentially ending careers. They must produce original, well-cited content.

Why is plagiarism bad?

There are several reasons why plagiarism is wrong, all centering around violating academic integrity, undermining originality, and eroding trust. It leads to legal consequences, tarnishes reputations, and stunts personal growth. Avoiding plagiarism preserves credibility, fosters creativity, and upholds ethical standards. Educational institutions and search engines penalize plagiarized content, impacting SEO rankings and visibility. Embracing originality ensures sustainable success and fosters a trustworthy reputation online.

Can AI-generated content be considered plagiarism-free?

AI-generated content, such as text produced by language models like GPT-3, GPT-4, and Gemini, can be considered plagiarism-free if properly used and cited. However, using AI writing tools like ChatGPT without adequate citation can lead to unintentional plagiarism. It's vital to use an AI content detector to ensure originality. High-quality tools that use advanced detection models, like Quetext’s AI Detector, can help identify AI-generated text, minimizing the risk of false positives and ensuring that submissions are plagiarism-free.

How does AI technology impact plagiarism detection?

AI-generated content and AI-generated text are now common, making AI content detection crucial. Detecting AI technology, including advanced algorithms and language models like ChatGPT-3 and GPT-4, has significantly improved plagiarism detection. Tools like Quetext’s AI detector tool utilize these advanced models to compare submitted text against vast databases, ensuring accurate detection of potential plagiarism and copy written by artificial intelligence or generative ai.

Fast and Reliable Results with Quetext

Free plagiarism checker by EasyBib

Check for plagiarism, grammar errors, and more.

Expert Check

how to check if your essay is plagiarized

Check for accidental plagiarism

Avoid unintentional plagiarism. Check your work against billions of sources to ensure complete originality.

Find and fix grammar errors

Turn in your best work. Our smart proofreader catches even the smallest writing mistakes so you don't have to.

Get expert writing help

Improve the quality of your paper. Receive feedback on your main idea, writing mechanics, structure, conclusion, and more.

What students are saying about us

"Caught comma errors that I actually struggle with even after proofreading myself."

- Natasha J.

"I find the suggestions to be extremely helpful especially as they can instantly take you to that section in your paper for you to fix any and all issues related to the grammar or spelling error(s)."

- Catherine R.

Check for unintentional plagiarism

Easily check your paper for missing citations and accidental plagiarism with the EasyBib plagiarism checker. The EasyBib plagiarism checker:

Scans your paper against billions of sources.
Identifies text that may be flagged for plagiarism.
Provides you with a plagiarism score.

You can submit your paper at any hour of the day and quickly receive a plagiarism report.

What is the EasyBib plagiarism checker?

Most basic plagiarism checkers review your work and calculate a percentage, meaning how much of your writing is indicative of original work. But, the EasyBib plagiarism checker goes way beyond a simple percentage. Any text that could be categorized as potential plagiarism is highlighted, allowing you time to review each warning and determine how to adjust it or how to cite it correctly.

You’ll even see the sources against which your writing is compared and the actual word for word breakdown. If you determine that a warning is unnecessary, you can waive the plagiarism check suggestion.

Plagiarism is unethical because it doesn’t credit those who created the original work; it violates intellectual property and serves to benefit the perpetrator. It is a severe enough academic offense, that many faculty members use their own plagiarism checking tool for their students’ work. With the EasyBib Plagiarism checker, you can stay one step ahead of your professors and catch citation mistakes and accidental plagiarism before you submit your work for grading.

Why use a plagiarism checker?

Imagine – it’s finals week and the final research paper of the semester is due in two days. You, being quite familiar with this high-stakes situation, hit the books, and pull together a ten-page, last-minute masterpiece using articles and materials from dozens of different sources.

However, in those late, coffee-fueled hours, are you fully confident that you correctly cited all the different sources you used? Are you sure you didn’t accidentally forget any? Are you confident that your teacher’s plagiarism tool will give your paper a 0% plagiarism score?

That’s where the EasyBib plagiarism checker comes in to save the day. One quick check can help you address all the above questions and put your mind at ease.

What exactly is plagiarism?

Plagiarism has a number of possible definitions; it involves more than just copying someone else’s work. Improper citing, patchworking, and paraphrasing could all lead to plagiarism in one of your college assignments. Below are some common examples of accidental plagiarism that commonly occur.

Quoting or paraphrasing without citations

Not including in-text citations is another common type of accidental plagiarism. Quoting is taking verbatim text from a source. Paraphrasing is when you’re using another source to take the same idea but put it in your own words. In both cases, it’s important to always cite where those ideas are coming from. The EasyBib plagiarism checker can help alert you to when you need to accurately cite the sources you used.

Patchwork plagiarism

When writing a paper, you’re often sifting through multiple sources and tabs from different search engines. It’s easy to accidentally string together pieces of sentences and phrases into your own paragraphs. You may change a few words here and there, but it’s similar to the original text. Even though it’s accidental, it is still considered plagiarism. It’s important to clearly state when you’re using someone else’s words and work.

Improper citations

Depending on the class, professor, subject, or teacher, there are multiple correct citation styles and preferences. Some examples of common style guides that are followed for citations include MLA, APA, and Chicago style. When citing resources, it’s important to cite them accurately. Incorrect citations could make it impossible for a reader to track down a source and it’s considered plagiarism. There are EasyBib citation tools to help you do this.

Don’t fall victim to plagiarism pitfalls. Most of the time, you don’t even mean to commit plagiarism; rather, you’ve read so many sources from different search engines that it gets difficult to determine an original thought or well-stated fact versus someone else’s work. Or worse, you assume a statement is common knowledge, when in fact, it should be attributed to another author.

When in doubt, cite your source!

Time for a quick plagiarism quiz!

Which of the following requires a citation?

A chart or graph from another source
A paraphrase of an original source
Several sources’ ideas summarized into your own paragraph
A direct quote
All of the above

If you guessed option E than you’d be correct. Correct punctuation and citation of another individual’s ideas, quotes, and graphics are a pillar of good academic writing.

What if you copy your own previous writing?

Resubmitting your own original work for another class’s assignment is a form of self-plagiarism, so don’t cut corners in your writing. Draft an original piece for each class or ask your professor if you can incorporate your previous research.

What features are available with the EasyBib plagiarism checker?

Along with providing warnings and sources for possible plagiarism, the EasyBib plagiarism checker works alongside the other EasyBib tools, including a grammar checker and a spell checker . You’ll receive personalized feedback on your thesis and writing structure too!

The plagiarism checker compares your writing sample with billions of available sources online so that it detects plagiarism at every level. You’ll be notified of which phrases are too similar to current research and literature, prompting a possible rewrite or additional citation. You’ll also get feedback on your paper’s inconsistencies, such as changes in text, formatting, or style. These small details could suggest possible plagiarism within your assignment.

And speaking of citations, there are also EasyBib citation tools available. They help you quickly build your bibliography and avoid accidental plagiarism. Make sure you know which citation format your professor prefers!

Great! How do I start?

Simply copy and paste or upload your essay into the checker at the top of this page. You’ll receive the first five grammar suggestions for free! To try the plagiarism checker for free, start your EasyBib Plus three-day free trial.* If you love the product and decide to opt for premium services, you’ll have access to unlimited writing suggestions and personalized feedback.

The EasyBib plagiarism checker is conveniently available 24 hours a day and seven days a week. You can cancel anytime. Check your paper for free today!.

*See Terms and Conditions

Visit www.easybib.com for more information on helpful EasyBib writing and citing tools.

For informational guides and on writing and citing, visit the EasyBib guides homepage .

Free AI Detector

Identify AI-generated content, including ChatGPT and Copilot, with Scribbr's free AI detector

Why use Scribbr’s AI Detector

Authority on ai and plagiarism.

Our plagiarism and AI detector tools and helpful content are used by millions of users every month.

Advanced algorithms

Our AI checker is built using advanced algorithms for detecting AI-generated content. It’s also been enhanced to distinguish between human-written, AI-generated, and AI-refined writing.

Unlimited free AI checks

Perform an unlimited number of AI checks for free, with a limit of up to 1,200 words per submission, ensuring all of your work is authentic.

No sign-up required

Start detecting AI-generated content instantly, without having to create an account.

Confidentiality guaranteed

Rest easy knowing your submissions remain private; we do not store or share your data.

Paraphrasing detection

Scribbr’s AI Detector provides insight into whether a piece of writing is fully AI-generated, AI-refined, or completely human-written.

Multilingual support

Our AI Detector supports multiple languages, including German, French, and Spanish. We check and analyze your content at a high level of accuracy across many different languages.

Paragraph level feedback

Our AI Content Detector identifies specific areas in your text that are likely AI-generated or AI-refined to provide a detailed analysis of the content.

AI Proofreader Scanning Document for grammar mistakes

AI Detector for ChatGPT, Copilot, Gemini, and more

Scribbr’s AI Content Detector accurately detects texts generated by the most popular tools, like ChatGPT, Gemini, and Copilot. It also offers advanced features, such as differentiation between human-written, AI-generated, and AI-refined content and paragraph-level feedback for more detailed analysis of your writing.

Our advanced AI checker tool can detect the latest models, like GPT4 with high accuracy. Note that no AI Detector can provide complete accuracy ( see our research ). As language models continue to develop, detection tools will always have to race to keep up with them.

Our AI Content Detector is perfect for..

Confidently submit your papers

Scribbr’s AI Detector helps ensure that your essays and papers adhere to your university guidelines.

Verify the authenticity of your sources, ensuring that you only present trustworthy information.
Identify any AI-generated content, like that created by ChatGPT, that might need proper attribution.
Analyze content in English, German, French, and Spanish.

Check the authenticity of your students’ work

More and more students are using AI tools like ChatGPT in their writing process. Our AI checker helps educators detect AI-generated, AI-refined, and human-written content in text.

Analyze the content submitted by your students to ensure that their work is actually written by them.
Promote a culture of honesty and originality among your students.
Receive feedback at the paragraph level for more detailed analysis.

Prevent search algorithm penalties

Using our AI content detector ensures that your content will be indexed by assisting you to publish high-quality and original content.

Analyze the authenticity of articles written by external contributors or agencies before publishing them.
Deliver unique content that engages your audience and drives traffic to your website.
Differentiate between human-written, AI-generated, and AI-refined content for detailed analysis.

AI Detectors vs. Plagiarism Checkers

AI detectors and plagiarism checkers are both used to verify the originality and authenticity of a text, but they differ in terms of how they work and what they’re looking for.

AI Detector or ChatGPT Detector

AI detectors try to find text that looks like it was generated by an AI writing tool, like ChatGPT. They do this by measuring specific characteristics of the text like sentence structure and length, word choice, and predictability — not by comparing it to a database of content.

Plagiarism Checker

Plagiarism checkers try to find text that is copied from a different source. They do this by comparing the text to a large database of web pages, news articles, journals, and so on, and detecting similarities — not by measuring specific characteristics of the text.

Scribbr & academic integrity

Scribbr is committed to protecting academic integrity. Our tools, like the AI Detector, Plagiarism Checker , and Citation Generator are designed to help students produce quality academic papers and prevent academic misconduct.

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

Your questions, answered

Scribbr’s AI Detector can confidently detect most English texts generated by popular tools like ChatGPT, Gemini, and Copilot.

Our free AI Detector can detect texts written using GPT2, GPT3, and GPT3.5 with average accuracy, while our Premium AI Detector has high accuracy and the ability to detect GPT4.

Our AI Detector is carefully trained to detect most texts generated by popular tools like ChatGPT and Bard. These texts often contain certain phrases, patterns, or awkward wording that indicate they were not created by a human. However, no AI model on the market can guarantee 100% accuracy, including ours. To get the best results, we recommend scanning longer pieces of text rather than individual sentences or paragraphs.

Our research into the best AI detectors indicates that no tool can provide complete accuracy; the highest accuracy we found was 84% in a premium tool or 68% in the best free tool.

The AI score is a percentage between 0% and 100%, indicating how much of the text contains content likely written or refined using AI tools.

No—Scribbr’s AI Detector will only give you a percentage between 0% and 100% that indicates the likelihood that your text contains contains AI-generated, AI-refined, or human-written content.

No—our AI content checker can only identify AI-generated, AI-refined, and human-written content. Our Plagiarism Checker can help prevent unintentional plagiarism in your writing.

Yes—our AI Detector can currently analyze text in English, Spanish, German, and French