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Regex Tester & Matcher
Test regular expressions with real-time match highlighting, capture group extraction, and flags (g, i, m, s, u).
Test String
0 chars
Match Preview & Capture Groups
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How to Use the Regex Tester & Matcher
Test regular expressions with real-time match highlighting, capture group extraction, and flags (g, i, m, s, u).
Frequently Asked Questions
Yes, 100%. All processing runs strictly inside your local web browser. No inputs or files are uploaded to any server.