Text Diff Checker
Paste two versions of text to instantly see line-by-line additions and removals highlighted, entirely in your browser.
+0 added · -0 removed
Frequently Asked Questions
How does the comparison work?
It uses a longest-common-subsequence line-diff algorithm, the same approach behind tools like git diff, to find the smallest set of added/removed lines between the two texts.
Does it compare word-by-word or line-by-line?
Line-by-line — each line is treated as a single unit, so a single changed word will mark that whole line as removed and its replacement as added.
Is my text uploaded anywhere?
No — both text boxes are compared entirely in your browser using local JavaScript, nothing is sent to a server.
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