Text Diff Checker
Compare two blocks of text line by line and instantly see what was added, removed, or left unchanged, entirely in your browser.
How this tool works
Paste the original text on the left and the changed version on the right, then click Compare. Lines that match are shown unchanged, lines only in the original are marked as removed, and lines only in the new version are marked as added — using the same line-matching approach behind most code diff tools.
Common uses
Comparing two drafts of a document to see exactly what changed, checking a contract revision against the original, or spotting what a colleague edited in a shared text file — anywhere you have two versions of the same text and need to know precisely what's different.
Privacy by design
The comparison runs entirely in your browser. Neither text is uploaded, logged, or stored anywhere.
This tool runs entirely in your browser. Nothing you enter is uploaded or stored.
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