Text Diff
③ Data / Text
What it is: Compare two texts side by side and mark which lines were added, removed, or changed.
When to use: When comparing two versions of a config/code/copy to see what differs.
Diff Result
Enter text in both panels then click "Compare".
Everything runs locally in your browser — nothing is uploaded.
FAQ
What algorithm does this tool use?
The tool runs the Myers Diff Algorithm entirely in your browser. Myers diff is the standard algorithm used by GNU diff and most version-control systems — it finds the shortest edit script between two sequences.
Is my text sent to a server?
No. All comparison logic runs client-side in your browser. Your text never leaves your device.