Regular expression tester
Test a JavaScript regex against text with match positions and capture groups.
Result
Add your input, then select Test regex.
How to use it
Enter text and a JavaScript pattern without surrounding slashes. Matches include offsets and named groups.
What to keep in mind
Patterns run in an isolated worker with a time limit. This is not a guarantee that a pattern is safe for production.
Up to 2 MB per input, with smaller limits for complex operations. Clear removes the current input and result.
Catch problems while customers use your app.
Braith reviews sampled app activity for likely failures and friction. Keep your error tracker for exceptions and stack traces.
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