Text Diff

Compare two texts and see differences

How to use

1. Paste the original text on one side and the changed text on the other.
2. Differences are highlighted line by line — additions, removals, and changes.
3. Use it to compare versions, drafts, or config files.

Why use this tool

• Clear highlighting: Added and removed lines are colour-coded so changes jump out.
• Any text: Compare prose, code, JSON, logs — anything you can paste.
• 100% private: Everything runs in your browser. Your data is never uploaded to a server, so it's safe for confidential content.

Frequently asked questions

What can I compare?

Any two blocks of text — document drafts, code, configuration files, API responses, and more.

Does it compare word by word or line by line?

It highlights differences line by line, making it easy to see exactly which lines changed.

Is my content uploaded?

No. The comparison runs in your browser, so confidential files stay private.

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