Text Diff Checker

Paste two versions of text and see exactly what changed. Additions in green, deletions in red. 100% Client-Side

Original Text

Modified Text

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How does the diff algorithm work?

This tool uses the Longest Common Subsequence (LCS) algorithm to find the minimal set of changes between two texts. Lines present only in the original are shown as deletions (red), lines only in the modified text as additions (green), and unchanged lines in white.

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