Regex Tester
Match Results
No matches found. Enter a regex pattern and test string to see results.
Match Information
Total Matches
0
First Match Position
-
Last Match Position
-
Matched Groups
No group matches found.
Why Use Our Regex Tester?
Fast Processing
Our regex tester runs entirely in your browser for instant results without server delays.
Secure & Private
All processing happens locally in your browser - your data never leaves your device.
Mobile Friendly
Works perfectly on all devices - smartphones, tablets, and desktops.
Full Flag Support
Test with all regex flags (i, g, m, s, u) to match your implementation needs.
Group Visualization
Clearly see captured groups and their positions in your matches.
Error Detection
Get clear error messages when your regex pattern has syntax issues.