Regex Tester
Test regular expressions against sample text and view matches.
How to use Regex Tester
- 1
Paste or type your input in the editor.
- 2
Click Process to transform instantly.
- 3
Copy the result with one click.
Why choose Regex Tester?
- Runs 100% in your browser
- No file uploads needed
- Instant results
- Private — data never leaves your device
FAQ
Which flavor?
JavaScript RegExp syntax with custom flags (g, i, m, etc.).
Invalid pattern?
You'll get a clear syntax error message.