Client-side only · Text diff checker
Text Diff Checker
Compare two versions of text side by side and highlight changes. All processing happens entirely in your browser—no text is ever sent to a server.
diffWords() / Tailwind CSS / LucideIdeal for quick reviews of edits, documentation changes, and content revisions.
Input texts
Paste or type your original and modified text, then click Compare to highlight differences.
Original Text
Modified Text
Comparison runs locally in your browser using the diffWords algorithm from the diff library.
Diff result
Added text is highlighted in green, removed text in red. Run a comparison to see differences here.
No diff computed yet. Enter text above and click Compare to see highlighted differences.