Regex Visualizer
Visualize and test regular expressions with real-time highlighting and match details.
Test and visualize regular expressions with real-time highlighting and match details. Debug complex patterns for form validation, parsing, and text processing.
Regex Visualizer
Visualize and test regular expressions with real-time highlighting and match details.
About this tool
Test and visualize regular expressions with real-time highlighting and match details. Debug complex patterns for form validation, parsing, and text processing.
Enter your regex pattern and test string.
//gm
Output appears here...
Visualization
Match Information (0)
No matches found.
Enter your regex pattern and test string.
//gm
FAQ
Common questions and answers about this topic.
What does this tool do?
It visualizes regular expressions as diagrams and tests them against sample text, showing matches highlighted in real-time.
Which regex flavor is supported?
JavaScript regex syntax is supported, including flags like global, case-insensitive, multiline, dotAll, Unicode, and sticky.
Can I test my regex against sample text?
Yes, enter test strings to see matches highlighted in real-time with detailed match information including captured groups.
Is my data sent to any server?
No, regex visualization and testing run entirely in your browser. Your patterns and test strings are processed locally with JavaScript and never leave your device.