Regex Tester

Test regular expressions in real-time with match highlighting. Supports flags g, i, m, s.

正規表現パターン

//g

フラグ：g (グローバル)i (大文字小文字無視)m (複数行)s (ドットが改行に一致)

テスト文字列

マッチ結果

Hello World
hello world
HELLO WORLD

About this tool

Test regular expressions in real-time with match highlighting. Supports flags g, i, m, s.