Text Diff — Free
Paste two texts and compare them line by line. Added lines are highlighted in green, removed lines in red.
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Line-by-line diff
Uses LCS algorithm to find the minimal set of changes between two texts.
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Color coded
Green for added lines, red for removed, white for unchanged. Easy to scan at a glance.
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Fully private
The diff runs entirely in your browser. Your text never reaches any server.