Text diff checker

Compare two texts line by line and see exactly which lines were added or removed.

🔒 Everything runs in your browser. Nothing you choose or type is uploaded. How to verify

How to use it

1. Paste the original text, then the changed text.
2. Select Run.
3. Read the lines marked + (added) and - (removed).

Handy for

Comparing two drafts, config files or versions of a contract clause.

Good to know

Lines are compared exactly, including spaces and capital letters. A changed line shows as one removal and one addition.

Privacy: where the work happens

Everything you enter or choose is processed by JavaScript in your browser and never sent anywhere. Only the page code, and any library this tool needs, is downloaded from cdnjs or jsDelivr.

Questions

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