Regex Tester
Test JavaScript regular expressions with live matches.
This tool runs in your browser.
Your result will appear here.
How to use
- 01Enter or choose your input.
- 02Review the result generated in your browser.
- 03Copy or download the result when available.
FAQ
Does this tool send data to a server?
This tool is designed to process its input locally in your browser.
Regex Tester: Can I use the result in production?
Treat generated, converted, or inspected output as a development aid. Validate security-sensitive values, commands, and configuration in the target environment before production use.
Does Regex Tester upload my input?
TrueFree Tools processes the input in your browser and does not store it on our servers. Features that need browser permissions or access to a user-supplied address still follow the notice shown in the tool.