Regex Tester
Test JavaScript regular expressions live, see every match and capture group, and catch errors instantly. Runs entirely in your browser.
//
Test string
Matches
2hi@sahaworks.toolsindex 12support@sahaworks.toolsindex 34
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About this tool
Test regular expressions against sample text with live match highlighting, so you can build and refine patterns with confidence.
Common use cases
- Build a validation pattern for a form field
- Debug why a regex doesn't match
- Extract values from log lines