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Diff Checker

Compare two texts or code snippets side by side. Added and removed lines are highlighted instantly — free, private online diff checker.

+2 added−1 removed

  apple
− banana
+ blueberry
  cherry
+ date

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What is the diff checker?

Compare two texts or code snippets and see added and removed lines highlighted instantly.

How to use the Diff Checker

Paste the original text on the left.
Paste the changed text on the right.
Review the highlighted differences.

Common uses

Reviewing document revisions
Comparing code and config files
Checking contract changes

Frequently asked questions

Does it compare line by line?

Yes. Lines that were added or removed are highlighted in green and red.

Can I compare code?

Yes, any plain text works, including code, JSON and CSV.

Is my text uploaded?

Everything runs locally in your browser — nothing is uploaded or stored.

Also known as: text compare, compare text online, text diff, compare two files, code diff, find differences in text.

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