정규식 테스터
실시간 하이라이팅 기능이 있는 무료 정규식 테스터. JavaScript 정규식을 작성하고, 입력하는 동안 일치 항목과 캡처 그룹이 업데이트되는 것을 확인합니다. 브라우저가 사용하는 것과 동일한 엔진을 사용합니다.
Runs in your browserUpdated Apr 26, 2026
Pattern
//
Test String
2 matches
Highlighted
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자주 묻는 질문
›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.