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Free tools to detect plagiarism
Allows for document submissions (all file formats) and webpage (url) submission. When you click the Submit button, this site links you to a Google search results page. The page has a list of websites that contain one or more of the phrases you typed in. Allows you to search for several phrases from a student's paper at the same time without having to type quotation marks or special operators, which most search engines require if you're trying to look for exact copies of a student's writing.
Scans a large database of academic essays and other online sources, offering side-by-side comparisons for plagiarism. Scans against essays on your computer and on the internet. Available for Microsoft Windows users only.
Grammarly is an automated proofreader and plagiarism checker.
Searches up to 32 word segments against a very large body of works, including web pages, academic articles and books.
Compares up to 500 documents at a time for possible plagiarism. Reads word files, text files, and pdf. Useful for checking for plagiarism between students as well as for plagiarism from a defined body, such as the list of readings for a course.
Enter text by copy-paste method, entering the url, or by uploading a text file. Press the ‘Search’ button below the box to enter text. The results will be displayed immediately. You can perform 1 search per day as an unregistered user, registered users can perform 50 searches per day (free).
Free version allows users to paste entire papers into a search box. Will find exact sentence matches. A premium version, for a subscription fee of $8 per month, claims to increase the accuracy of the scan and allows users to upload Microsoft Word documents. After the daily limit of uses has been reached (1,000 uses daily), the service ceases to operate until the following day.
Use unicheck to compare your documents versus live web index. We give you free no obligation 500 words to run check.
Copyscape only checks articles on the web for plagiarism, it does not check documents or files.
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