Compare Two Texts Online — Find Every Difference Instantly

Contracts, translations, code and documents evolve. Paste two versions and see exactly what changed, word by word, without uploading anything.

Who needs a text diff tool?

Lawyers reviewing contract amendments. Translators checking revisions. Developers comparing config files. Writers editing drafts. Anyone who needs to know precisely what changed between two versions of a text.

How does it work?

The tool uses a longest-common-subsequence algorithm to match words between the two texts. Additions are highlighted in green, deletions in red with strikethrough. You see the exact count of additions and deletions at a glance.

Is my text private?

Yes. Both texts are compared entirely in your browser. No server sees your contracts, translations or confidential documents. This makes it safe for legal, medical or business texts that cannot leave your device.