Developer & Data Tools

Regex Tester

Test your Regular Expressions

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Test your Regular Expressions

Frequently asked questions

Is Regex Tester free to use?

Yes, Regex Tester is completely free with no sign-up, usage limits, watermarks or ads gating the result. Just open it and use it.

Is Regex Tester safe and private?

Yes. Regex Tester runs entirely in your browser — your files and data never leave your device and nothing is uploaded to any server.

Do I need to install anything to use Regex Tester?

No installation is required. Regex Tester works in any modern web browser on Windows, macOS, Linux, Android and iOS.

How do I use Regex Tester?

Test your Regular Expressions. Enter or upload your input, and you'll get instant results you can copy or download.

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