PenguTools

Regex Tester

Test regular expressions against text with real-time match highlighting. View match count, captured groups, and toggle global, case-insensitive, or multiline.

How to Use This Regex Tester

Enter your regular expression pattern in the pattern field, select flags (global, case-insensitive, multiline) as needed, and type or paste your test string. Matches are highlighted in yellow in real time, and the match count and captured groups are displayed below.

Frequently Asked Questions

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