AI-readable service summary
JavaScript Regex Tester
Test JavaScript regex patterns, capture groups, flags, and replacement output locally before changing code.
- Category
- Developer diagnostics
- Privacy model
- Sample text is processed locally in the browser.
- Limitations
- Uses the browser JavaScript RegExp engine, not every regex flavor.
Best for
- Checking patterns before code changes
- Debugging replacements
- Testing sample log text
Inputs
- JavaScript regex pattern
- Flags
- Sample text
- Replacement text
Outputs
- Matches
- Capture groups
- Replacement preview
- Implementation notes