Regular Expression Tester Guide

This tool helps you test and debug regular expressions in real-time.

Features

• Real-time pattern matching
• Match highlighting
• Support for regex flags (g, i, m, s, u, y)
• Match count and group information
• Error detection and validation

How to Use

1. Enter your regular expression pattern
2. Add any regex flags you need
3. Enter the test text
4. See matches highlighted in real-time
5. View detailed match information

Tips

• Use the global (g) flag to find all matches
• Use the case-insensitive (i) flag to ignore case
• Use the multiline (m) flag for multiline text
• Escape special characters with \