Regex Tester
Enter a regular expression and sample text. See matches and groups. Uses JavaScript RegExp. All in browser.
Test regex
How it works
We create a RegExp from your pattern (with optional flags g, i, m), run exec or matchAll, and display results.
When to use it
Use this when you need a quick result without installing software or creating an account.
Frequently asked questions
Which regex flavor?
JavaScript (ECMAScript). Slightly different from PCRE or Python.