Regular Expression Tester
Test and debug your regular expressions in real-time. All processing is done securely in your browser.
Regex Engine
Test String
Results
Found 2 matches.
Highlighted Matches
Match Details
| # | Match | Index | Groups |
|---|---|---|---|
| 1 | test@example.com | 22 | |
| 2 | support@example.org | 42 |
Test and debug regular expressions with live highlighting. Try patterns against sample text, toggle flags, and inspect capture groups before using in code.
How to use Regex Tester
- Enter your regular expression pattern and optional flags.
- Paste sample text to test against.
- Review highlighted matches, groups, and match count in real time.
See also: JSON Validator, Text Diff Checker
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Frequently Asked Questions
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