Regex Tester
Test, debug, and learn regular expressions with real-time highlighting.
Why use our Regex Tester tool?
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Real-time Matches
Highlights update instantly as you type.
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Cheat Sheet
Built-in library of common regex patterns.
Common Questions
Which regex engine is used?
It uses the native JavaScript RegExp engine in your browser.
Feedback & Suggestions 💡
Help us improve the Regex Tester tool.