Text Compare

Compare two texts and highlight differences. Runs locally in your browser.

Runs locally in your browser. Nothing you paste is sent to a server.

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Tip: Click Compare to view a highlighted diff in-place.

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Compare text online

This text compare tool helps you compare two texts and highlight differences between them. Perfect for spotting changes in code, configuration files, logs, or any text content. The diff view shows insertions, deletions, and modifications side-by-side with color-coded highlights.

All processing happens locally in your browser — nothing you paste or upload is sent to a server. You can customize the comparison with options like ignoring whitespace, case sensitivity, trimming lines, and ignoring empty lines. For advanced users, inline differences show character-level changes within modified lines.

Common uses

Compare JSON responses or configuration files
Verify changes between document versions
Spot differences in copied or pasted text
Review code changes and file modifications

FAQ

Is my text uploaded to a server?

No. Everything runs locally in your browser. Nothing you paste is sent to a server.

Can I use this tool offline?

After the page loads once, it will typically keep working offline (unless you hard refresh with no cache).

Do you store my input?

No. Your input stays in your browser. Only optional preferences like theme or language may be stored.

What input formats are supported?

Any plain text. You can paste text directly into the input box.