Write, test, and debug regular expressions with instant visual feedback. This interactive regex visualizer shows you exactly how your pattern matches input text, highlights capture groups, and helps you identify and fix errors — making regex development faster and less frustrating.
Pattern Breakdown: Split regex into tokens to visually show the meaning of each part.
Match Testing: Enter test strings to see match results and highlighting in real time.
Flags: Supports common flags like g, i, m, s, u, y.
Write, test, and debug regular expressions with instant visual feedback. This interactive regex visualizer shows you exactly how your pattern matches input text, highlights capture groups, and helps you identify and fix errors — making regex development faster and less frustrating.
Enter your regex pattern
Type your regular expression in the pattern input field at the top of the tool.
Set regex flags
Toggle flags like global, case-insensitive, multiline, or dotAll using the flag buttons.
Add test strings
Enter one or more test strings in the input area to see how your regex matches them.
Analyze the results
Matches are highlighted in the test string. Click on any match to see detailed group information and captured values.
Refine and iterate
Edit your pattern or test strings and watch the results update instantly. Fix errors flagged by the tool until your regex works as expected.