Developer utilities
Regex Tester
Test regular expressions against text and see live match results.
Enter a pattern and flags. Type test text. Matches appear live.
5 matches
quickbrownjumpsoverlazy
How to use it
- 1Enter pattern.
- 2Set flags (g, i, m, s, u, y).
- 3Paste test text.
- 4Review matches.
Real use cases
- Log parsing.
- Form validation.
- Data extraction.
Frequently asked
What regex flavor is this?
JavaScript / ECMAScript. Different from PCRE, Python, or Go in some edge cases (like lookbehind support and Unicode).
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