3 tools to track copy and paste

Last updated on 12 May 2026

While the corrector’s informed eye can most of the time quickly detect plagiarism or a simple copy-paste in a copy, there are also online tools that make it possible to confirm an impression of déjà vu, already read. Here are three online tools to track copy-paste and hunt plagiarism.

The Google search engine alone is a formidable weapon against untimely copy and paste. It is enough to copy and paste a passage of a text into the search engine to see the student’s ‘source of inspiration’ often traced back. If that's not enough, here are three tools to go a little further.

Duplichecker

With a very simple use, Duplichecker is a free tool that knows how to find copy-paste in any text. Just enter the text field of the site, the text passage you want to control and then start the search. The extract is limited to 1000 words. You can also upload full text in Word or .txt format.
Link: Duplichecker

Scribbr

Scribbr presents itself on its website as the best online anti-plagiarism software. I don't know if the Scribbr Plagiarism Detector is the best, but it is undoubtedly one of the best solutions today. This anti-plagiarism software uses state-of-the-art technology (Turnitin's), in order to compare your document to a constantly updated database. Your document will be compared with several billions of sources, to detect similarities and online plagiarism. The results are very clear and make it possible to intervene quickly in a targeted way to remove any doubt about the value of the submitted text. The rate is calculated according to the length of the document submitted. An essential for your important documents.
Link: Scribbr

Plagium

Another tool effective enough to search for untimely plagiarism or copy-paste in a text, Plagium works fast and well. Plagium makes use of a special technique that intelligently splits the input text into smaller phrases. These extracts are compared on the web in an efficient way, in order to determine the corresponding documents. An advanced search option allows you to submit long or even very long texts. The analysis time is also quite long, but the result is good. Plagium is free for simple searches. For expert functions, the rate is calculated on the page.
Link: Plagium

> For a more complete list of tools to detect plagiarism go to this other article updated regularly.

Read also a selection of tools to extract text from a photo.