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Ensure authenticity with QuillBot’s Plagiarism Checker
QuillBot’s Plagiarism Checker analyzes whether any section of your text did not properly attribute authorship to content already published on the web or in books, research papers, academic papers, or news sources.
Real-time report and analysis
Quickly and accurately review all instances of plagiarized writing in your work with our plagiarism detector that provides a comprehensive plagiarism score and report.
Clear and actionable feedback
Our Plagiarism Checker easily understands what sections of your document are missing proper citations.
100+ languages
QuillBot’s Plagiarism Checker lets you scan text in more than 100 languages, including English, Spanish, French, Portuguese, Arabic, Russian, German, Greek, Chinese, and Japanese.
Monthly Scans
Scan up to 25,000 words per month with a Premium subscription. You can always buy more words if you need them.
Review your plagiarism report in 3 easy steps:
1
Get a subscription
Choose from 1 of 3 Premium plans, giving you access to all of QuillBot’s features, including our Plagiarism Checker.
2
Upload files
We accept a variety of file types including .txt, .pdf, .docx, and .html.
3
View the report
Receive your report in minutes to view potential plagiarism and relevant source links.
Our Premium subscription includes the Plagiarism Checker and so much more.
Free
125 words in Paraphraser
Standard and Fluency modes
Limited use of Synonym Slider
1 Freeze Word
1,200 words in Summarizer
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Plagiarism Checker (25,000 words)
Unlimited words in Paraphraser
Unlimited Custom and 9 predefined modes
Full use of Synonym Slider
Unlimited Freeze Words
6,000 words in Summarizer
Unique summaries using custom instructions
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Learn best practices around academic integrity
Be honest
Cite your sources
Show responsibility
Acknowledge authors
QuillBot is committed to promoting and protecting academic integrity. Our Plagiarism Checker, Citation Generator and guides are built to educate students on best practices to avoid unintentional plagiarism.
Here’s the thing: even paraphrased writing needs citations. Ideas can be plagiarized just as easily as words, so if you take someone’s idea and reword it, it still needs to be cited. Trying to pass off someone else’s idea as your own, with fresh language, is just as unethical as directly copying a quote. Everything that did not originate in your brain needs to be accurately cited.
QuillBot Plagiarism Checker FAQs
How are scans calculated?
Previously, Plagiarism Checker counted the number of pages per scan. We recently updated Plagiarism Checker to count words rather than pages. Scans can now be calculated with more clarity and accuracy.
How many words can I scan?
If you have a Premium account, you can scan 25,000 words per month. You also get a plagiarism score, a detailed list of plagiarized sources, a highlighted section of text for plagiarized and paraphrased content, a download report, and more.
Do my unused words carry over to the next month?
With a Premium account, you can scan 25,000 words per month.
Unused words don’t carry over to the next month, but you can buy more. Purchased words carry over from month to month until you use them.
Can I buy more words?
Yes! With a Premium account, you can purchase:
- 6,250 words for $2.45
- 25,000 words for $8.95
- 62,500 words for $19.95
Which file formats are supported by the Plagiarism Checker?
We support the following textual file types: .html, .txt (UTF-8 encoded). We also support non-textual file types, like .pdf, .docx.
How can I see how many words I’ve used?
With a Premium account, the number of words available that month is displayed at the top of the Plagiarism Checker home page. Your scan history will also show you how many words each document used.
Does QuillBot save my documents?
QuillBot stores your content in order to run the plagiarism report, so you can access your reports in the future. Our third-party vendor, CopyLeaks, does not store your content. QuillBot will never share your content with any third parties outside of CopyLeaks.
Do I need a premium account to use the Plagiarism Checker?
Yes. All Premium users have access to the Plagiarism Checker.