Regex Tester
developerPopularTest and debug regular expressions with real-time match highlighting and capture group breakdown.
Processed locally in your browser.
Offline Ready•Zero Uploads
Presets:
//gu
Test String2 Matches Found
Match Breakdown
#1prajwal@acharyaprajwal.com.npat index 32 (length 29)
#2support@acharyaprajwal.com.npat index 65 (length 29)
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How to Use This Tool
- 1Enter your regular expression pattern in the pattern bar.
- 2Select flags such as Global (g), Case-insensitive (i), and Multiline (m).
- 3Type or paste test strings into the text input area.
- 4Matches and indexed capture groups will be highlighted immediately.
Quick Examples
Email Pattern
[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}Frequently Asked Questions
It uses standard ECMAScript (JavaScript) regular expressions with full support for modern regex features.