Excellent Review score
Scribbr’s plagiarism checker is rated 4.6 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.
Scribbr’s plagiarism checker, in partnership with Turnitin, detects plagiarism more accurately than other popular tools—particularly when texts are heavily edited.
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 4.6 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 admissions essay to your dream college.
Compare your admissions essay to billions of web pages, 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, Citation Generator, proofreading services, paraphrasing tool, grammar checker, summarize, and free Knowledge Base content are designed to help students produce quality academic papers.
We make every effort to prevent our software from being used for fraudulent or manipulative purposes.
Extensive testing proves that Scribbr’s plagiarism checker is one of the most accurate plagiarism checkers on the market in 2024.
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.
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.
At the moment we do not offer a monthly subscription for the Scribbr Plagiarism Checker. This means you won’t be charged on a recurring basis – you only pay for what you use. We believe this provides you with the flexibility to use our service as frequently or infrequently as you need, without being tied to a contract or recurring fee structure.
You can find an overview of the prices per document here:
| Small document (up to 7,500 words) | $19.95 |
|---|---|
| Normal document (7,500-50,000 words) | $29.95 |
| Large document (50,000+ words) | $39.95 |
Please note that we can’t give refunds if you bought the plagiarism check thinking it was a subscription service as communication around this policy is clear throughout the order process.
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.
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).
To cater to this, we have the Self-Plagiarism Checker at Scribbr. Just upload any document you used and start the check. You can repeat this as often as you like with all your sources. With your Plagiarism Check order, you get a free pass to use the Self-Plagiarism Checker. Simply upload them to your similarity report and let us do the rest!
