🔍 정규식 테스터

실시간 일치로 정규식을 테스트하고 디버그해요

🔒 이미지가 기기 밖으로 나가지 않아요. 모든 처리는 JavaScript RegExp engine를 사용하여 브라우저에서 로컬로 이루어져요. 업로드, 서버, 추적이 없어요.

기능

  • Real-Time Matching — See matches highlighted instantly as you type your pattern and test string.
  • Capture Groups — View captured groups for each match — essential for complex patterns.
  • Find & Replace — Test regex replacements with a replace string and see the result.
  • 일반적인 패턴 — Quick-load common patterns for email, URL, phone, IP, and date validation.

작동 방식

  1. Enter a regex pattern — Type your regular expression and set flags (g, i, m, s).
  2. Enter test text — Paste the text you want to match against.
  3. Review matches — See highlighted matches, capture groups, and optionally test replacements.

활용 사례

  • Debug and test regex patterns before using them in code
  • Validate email, URL, or phone number patterns
  • Search and replace text with complex pattern matching

자주 묻는 질문

What regex flavor is used?

JavaScript's built-in RegExp engine, which supports standard features including lookahead, lookbehind, named groups, and Unicode escapes.

Are the common patterns reliable?

They cover the most common use cases. For production validation, always test with edge cases specific to your requirements.

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