Which regex flavor does this use?

This tool uses JavaScript's built-in RegExp engine, which supports features like lookahead, lookbehind, named groups, and Unicode properties.

Can I test with multiple strings?

Yes. Enter multiple test strings and see which ones match your pattern, with matches highlighted inline.

Which regex flavor does this use?

This tool uses JavaScript's built-in RegExp engine, which supports features like lookahead, lookbehind, named groups, and Unicode properties.

Can I test with multiple strings?

Yes. Enter multiple test strings and see which ones match your pattern, with matches highlighted inline.

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//g

テスト文字列

マッチ数（0）

マッチが見つかりません。

パターン解説

パターンを入力して解説を表示。

Regex Testerについて

Write and test regular expressions with instant visual feedback. See matches highlighted in real time, view capture groups, and test against multiple strings. Supports JavaScript regex syntax with all common flags.

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