Regex Tester
Type a pattern, paste sample text, see every match highlighted live.
No pattern yet
Writing a regular expression that actually matches what you intend is easier with live feedback — test your pattern against real sample text and see matches highlighted instantly as you type.
How it works
- Type a patternEnter your regular expression and any flags you need.
- Paste sample textMatches highlight live as you type in either field.
- Check the match countSee exactly how many matches your pattern finds, and where.
FAQ
Is my text sent anywhere?
No — matching runs entirely in your browser using JavaScript's native regex engine.
What flags are supported?
Standard JS regex flags: g (global), i (case-insensitive), m (multiline), s (dotall), u (unicode).