FREE TOOL / DEVELOPER
Regex Tester
Test JavaScript regular expressions with flags and inspect matches and capture groups. Execution is limited to one second.
Patterns are starting points, not complete validators. Maximum 500 matches. Expressions run in an isolated worker with a timeout.
Your result will appear here after you run the tool.
How to use it
- Enter your input or choose a file and adjust the available options.
- Select Run tool to generate the result. Any errors appear beside the output.
- Review the output, then copy or download it.