Tester wyrażeń regularnych
Darmowy tester regex z podświetlaniem na żywo. Pisz wyrażenia regularne JavaScript, obserwuj aktualizacje dopasowań i grup przechwytywania podczas pisania. Ten sam silnik, którego używa Twoja przeglądarka.
Runs in your browserUpdated Apr 26, 2026
Pattern
//
Test String
2 matches
Highlighted
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Często zadawane pytania
›Which regex flavor is used?
JavaScript regex (ECMAScript), evaluated by the same engine your browser uses. Matches PCRE for most common patterns but differs on lookbehinds and named groups.
›What flags can I use?
g (global), i (case-insensitive), m (multiline), s (dotAll), u (unicode), y (sticky).
›Are matches highlighted live?
Yes — every keystroke re-runs the regex and updates highlights immediately.
›Are capture groups shown?
Yes. Numbered and named capture groups are listed for each match.
›Is my input sent anywhere?
No — everything runs in your browser. Useful when testing regex against sensitive text.
›Is the regex tester free?
Yes — fully free, no signup.