🔍 Regex Tester Online
Free regex tester online with real-time highlighting and match groups. Test and debug regular expressions instantly in your browser.
Try Regex Tester Online →✨ Key Features
- Real-time regex matching as you type
- Syntax highlighting for matched groups
- Support for JavaScript, PCRE, and Python regex flavors
- Display all matches with positions and captured groups
- Common regex patterns cheat sheet built-in
- Regex explanation — human-readable breakdown
- Test substitution/replace patterns
- 100% client-side — private and instant