CopyFind AI

CopyFind AI can compare your text against billions of webpages to catch plagiarism and paraphrasing, and it can also check against specific target websites if you only care about a particular source.

That makes CopyFind AI a plagiarism checker and AI content detector for anyone who needs to confirm a piece of writing is original.

You can paste text or upload a file in txt, pdf or docx format, which saves time when you are checking a full essay or a draft that already lives in a document.

Beyond matching copied passages, the tool also looks at whether text was likely generated by AI, so one check covers both questions.

The pricing model is free, which suits occasional use by students, teachers and bloggers.

As with any detector, see a score as a prompt to review the flagged passages yourself rather than a final verdict on the writer.

The target-site comparison is the most distinctive part, since most checkers only scan the open web in general.