What is a Text Diff Checker?

A text diff checker compares two blocks of text and highlights the differences between them. It's an essential tool for reviewing code changes, comparing document versions, or spotting edits.

Key features:

Side-by-side comparison with visual highlighting
Line-by-line diff detection
Works with source code, plain text and documents
Real-time comparison as you type
No file size limits
Runs entirely in your browser — no uploads required

Frequently Asked Questions

What types of content can I compare?

Any plain text — source code, JSON, XML, Markdown, configuration files, prose, and more. If it's text, you can diff it.

Is my text sent to a server?

No. The comparison happens entirely in your browser. Your content is never uploaded or stored anywhere.

Can I use this to compare code from two Git branches?

Yes. Just paste the content from each version into the two input panels and the diff will be highlighted instantly.