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Diff Checker
Compare two texts and see exactly what changed.
Runs entirely in your browser. Neither text is ever sent anywhere.
How it works
- 1Paste the original and the changed text.
- 2Compare — additions are highlighted green, removals red.
- 3Review the differences at a glance.
About this tool
Paste an original and a changed version of a text — a contract, an essay, a piece of code — and instantly see every addition and removal highlighted in place.
Can I compare whole lines instead of words?
Yes, tick the option to compare line-by-line instead of word-by-word.
Does this work on code as well as prose?
Yes, it works on any plain text.
Is my text sent anywhere?
No, comparison happens entirely in your browser.