Yes. The diff tool works for any text, including code, configuration files, and documents.

Are my data uploaded to a server?

No. All processing happens directly in your browser.

How to Compare Texts Online — Text Diff Tool Free

The tool compares two texts line by line and highlights additions, deletions, and changes.

Last updated: July 2026 • 5 min read

Compare two texts side by side and see exactly what changed. Useful for code review, document comparison, and content editing.

Key Features: Side-by-side view • Color-coded changes • Line-by-line diff • 100% private • No registration required

Go to the Text Tools page and click on the "Text Diff" tab.

Paste the original text in one box and the modified text in the other.

See highlighted additions, deletions, and changes.

The tool compares texts line by line and highlights differences.