Tools
Regex Tester
Test regular expressions in real-time. Enter a regex pattern and test text to see matches highlighted with detailed match information.
Quick Reference
How to use this tool
Test regular expressions in real-time. Enter a regex pattern and test text to see matches highlighted with detailed match information. This tool is designed to help developers complete one focused task quickly, with clear input and output in the browser.
Suggested workflow
- Enter or select the data you want to work with.
- Use the Regex Tester controls to produce or inspect the result.
- Review the result, then copy or download it for your workflow.
Good to know
Your input is processed in the browser unless the tool explicitly makes a network request.
Regex Tester - CodeTools Toolbox - 47 free online developer tools.