Regex Tester
Test regular expressions in real-time with live match highlighting.
100% Free Forever
//
12 matches
Test your regex here. Match words and numbers like 123 or hello.
Free Regex Tester & Builder
Test regular expressions in real time with live match highlighting. Debug patterns for JavaScript, Python and other regex engines.
How to use this tool
- 1
Enter your regex pattern
Add the pattern and any flags (g, i, m).
- 2
Paste test text
See live highlights of every match.
- 3
Adjust until it matches what you need
Errors are shown if the regex is invalid.
Pro tips
- Use 'g' flag for all matches; without it, only the first match is found.
Frequently asked questions
Which regex flavor is used?
Standard JavaScript regex — close to PCRE in most cases.