Regex Tester
Validate regex patterns with instant highlights, capture group tables, and friendly presets.
Regex Tester
Preview JavaScript regular expressions with match highlights, capture groups, and helpful presets.
Input chars: 93
/[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,}/gmFind every match
Case-insensitive
^ and $ per line
Allow . to span lines
Full Unicode mode
Matches (3)
invite ken@easy-pdf.dev or mia@pdf.tools for the beta list\nbackup: ops@sub.mail.easy-pdf.dev
| # | Match | Index |
|---|---|---|
| 1 | ken@easy-pdf.dev | 7 |
| 2 | mia@pdf.tools | 27 |
| 3 | ops@sub.mail.easy-pdf.dev | 68 |
How to Use
1
Paste or type your regex, then add sample input text.
2
Toggle flags (global, multiline, etc.) to match your runtime environment.
3
Inspect highlighted matches and capture groups, then copy the results for docs or code reviews.
Frequently Asked Questions
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