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Text Diff Checker
Paste two versions of text to see what changed. Differences are highlighted side by side.
100% Private & Secure
This tool runs in your browser.
Your data is never uploaded or stored.
Original Text
1
Modified Text
1
How to use
- 1
Paste the original text on the left.
- 2
Paste the modified text on the right.
- 3
See highlighted differences.
Why use this tool?
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Fast, instant results — no waiting, no page reloads.
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Clean, focused interface designed for developers.
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100% private — everything runs in your browser, nothing is uploaded to any server.
Frequently Asked Questions
How are differences shown?
Added lines are highlighted in green, removed lines in red.