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Compare texts (diff)

Paste two versions of a text and see exactly what changed: added parts in green, removed in red, with a count of changes. Everything runs in your browser.

Everything runs in your browser — nothing is sent anywhere

How to use

  1. 1

    Paste the original text on the left and the changed text on the right.

  2. 2

    Switch between line and word comparison.

  3. 3

    Read the highlighted differences.

FAQ

Is my text uploaded?

No. The comparison runs in your browser.

Lines or words — which should I pick?

Lines for code, logs and lists; words for prose where a sentence changed slightly.

Is whitespace significant?

Yes, by default every character counts, so trailing spaces show up as changes.

Can I compare files?

Paste their contents. Very large files (tens of thousands of lines) may take a moment.

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