Excellent Review score
Scribbr’s plagiarism checker is rated 4.9 out of 5 based on 13,857 reviews.
Catch accidental plagiarism with Scribbr, in partnership with Turnitin, using the same software as most universities and publishers
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Catch accidental plagiarism with high accuracy with Scribbr’s Plagiarism Checker in partnership with Turnitin.
Detect AI-generated content, like ChatGPT3.5 and GPT4, with Scribbr’s AI Detector.
Find and fix spelling and grammar issues with Scribbr’s AI Proofreader.
* Only available when uploading an English .docx (Word) document
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.
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.
| 📚 Largest database | 99B web pages & 8M publications |
|---|---|
| 🌎 Supported languages | 20 languages |
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!
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.
The premium plagiarism checker provides you with an accurate similarity score that tells you what percentage of your paper is not original.
Similarities in your document are highlighted for quick and easy reviewing. Each color corresponds to a source in the Sources Overview.
Use the comparison feature to see how similar your writing is to the original without leaving the plagiarism checker report.
Upload previous assignments or a classmate’s paper to catch (self-)plagiarism that is otherwise difficult to detect by regular plagiarism checkers.
Writing issues are corrected automatically when you upload a Word document. To review the corrections, you can download a Word document with Track Changes.
Prices are per check, not a subscription
Scribbr’s plagiarism checker is rated 4.9 out of 5 based on 13,857 reviews.
Submissions will never be added to our content database. Therefore, no other plagiarism checker will see your text.
This plagiarism checker is not for you if you:
Ace your personal statement for your university application.
Compare your UCAS personal statement against billions of webpages, including other essays.
Submit your assignments with confidence.
Detect plagiarism using software similar to what most universities use.
Take your journal submission to the next level.
Compare your submission to millions of scholarly publications.
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 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.
Want to contact us directly? No problem. We are always here for you.
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:
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.
| Small document (up to 7,499 words) | £13.95 |
|---|---|
| Normal document (7,500-49,999 words) | £22.95 |
| Large document (50,000+ words) | £31.95 |
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.
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.