Regex Tester
Test regular expressions against sample text and see matches live.
Matches (3)
- #1 Helloindex 0
- #2 worldindex 6
- #3 123index 12
Your files are processed directly in your browser whenever possible.
How to use
- 1Open the Regex Tester tool.
- 2Enter your input or upload a file if required.
- 3Review the result, then copy or download as needed.
How it works
Regex Tester runs in your browser whenever possible. Your data stays on your device and is not uploaded to our servers unless a feature explicitly requires it.