Text Diff Checker
Compare two texts online for free and see line-by-line differences highlighted. Great for code review and config comparison. Browser-only.
Frequently asked questions
- Are my files uploaded to a server?
- No. This tool runs entirely in your browser using JavaScript — your files never leave your device.
- How are differences shown?
- Removed lines are red with a − prefix, added lines are green with a +, unchanged lines are plain.