Text Utilities
Regex Tester
Enter a pattern, flags, and sample text to quickly verify matches and captured groups.
Guide
How to use & features
- Enter your pattern and flags at the top, then paste sample text into the input area.
- Matched segments are highlighted and capture groups are shown for quick inspection.
- Type a replacement string to see the transformed output update in real time.
- Everything runs locally, so your input text stays on the page.
Results
Not run
Enter a pattern and text, then click “Run test”.