Regex Tester
Test JavaScript regular expressions instantly with match positions and capture groups. Great for validation, parsing, and debugging.
Test Input
Matches (0)
Matches will appear here...
How To Use & FAQ
How to use: Enter pattern + flags, then paste test text. Use g for all matches and remove it for first match only.
Q: Why no matches? A: Check if your pattern is escaped correctly (for word boundary use \\b).
Q: Which flavor is this? A: JavaScript RegExp syntax in your current browser runtime.
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