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Text Compare

Paste two versions, see exactly what changed — line by line, word by word.

Also searched as: diff checker · text difference checker · compare two documents

Compare two texts and see the differences

Paste the original on the left and the new version on the right, then tap Compare. Lines that were removed appear in red, added lines in green, unchanged lines in grey, and changed words are highlighted inside a line. Use it to check what an editor changed, compare two versions of a contract clause, spot differences between two lists of names or emails, or review code without installing anything.

Options let you ignore spacing and capitalisation differences. Both texts stay in your browser. For cleaning lists first, see remove duplicate lines.

Frequently asked questions

Does it compare Word or PDF files?

Paste the text from them (Ctrl+A, Ctrl+C in the document). File upload is not needed.

What do the colours mean?

Red = present only in the original (removed), green = present only in the changed text (added), yellow highlight = changed words inside a line.

Is my text uploaded?

No — the comparison runs locally in your browser.

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