Text Diff

It compares two texts line by line, showing added lines (green), removed lines (red), and unchanged lines. It uses the LCS (Longest Common Subsequence) algorithm to find changes accurately.

Comparing document revisions, reviewing code changes, checking contract versions, and proofreading translations.

When checked, uppercase and lowercase are treated as equal, so 'Apple' and 'apple' match.

No. All comparison happens in your browser; your text is never stored or transmitted.