Regex Visualizer Online - Free Pattern Tester & Debugger

About Regex Visualizer

Test and visualize regular expressions with real-time match highlighting. See capture groups, match positions, and test your regex patterns against sample strings.

Features

• Real-time regex testing with match highlighting
• Support for all JavaScript regex flags (g, i, m, s, u, y)
• Display of capture groups and match positions
• Visual highlighting of all matches in the test string
• Error reporting for invalid patterns