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Home/Tools/Text Diff Checker

Compare two blocks of text

Paste an original and a changed version to see exactly what was added or removed, at the word, line, or character level.

Text is compared on your device. Nothing is uploaded to our servers.
Fullscreen
Original
Changed
01
Paste both versions

The original on the left, the changed version on the right.

02
Pick a granularity

Compare word by word, line by line, or character by character.

03
Read the highlights

Green is added, red with a strikethrough is removed. Updates as you type.

Frequently asked

Is my text sent anywhere?

No. The comparison runs entirely in your browser.

Which granularity should I use?

Words for prose or code you'd read line by line anyway; Lines when you care about which whole lines moved; Characters for short strings like IDs or slugs where a single-letter change matters.

Does this work offline?

Yes, once the page has loaded.

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