Text Diff Checker
Paste two versions of a text and see the line-by-line differences, compared entirely in the browser.
Paste text on both sides to compare.
How the comparison works
The two texts are compared line by line using the longest common subsequence, the same idea behind git diff. Lines present only in the changed version show as additions, lines missing from it show as removals, and everything shared stays unmarked.
Comparison runs entirely in the browser, so it is safe for config files, contracts and anything else that should not be uploaded to a diff site. Very large texts fall back to a simpler comparison to stay fast.
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Free and open source from Earthling Digital, an independent creative agency. Built with Earthling UI.