Regular expressions are powerful tools for pattern matching and text manipulation. Our tester helps you build and debug regex patterns with instant visual feedback.
Features
- **Real-time Matching**: See matches highlight as you type - **Match Information**: View all matches with their positions - **Flag Support**: Toggle g, i, m, s, u flags - **Capture Groups**: View captured groups for each match
Common Regex Patterns
- **Email**: ^[\w.-]+@[\w.-]+\.\w+$ - **URL**: https?://[\w.-]+(?:/[\w.-]*)* - **Phone**: \d{3}[-.]?\d{3}[-.]?\d{4} - **IP Address**: \d{1,3}(\.\d{1,3}){3}