How to use Regex Generator
- Enter or paste your pattern and test string into the input field to begin.
- The result is computed live in your browser as you edit the input.
- When it looks right, Copy to save it.
About this tool
Everything Regex Generator does happens on your own device. Regex Generator tests your regular expression against sample text in your browser, highlighting matches as you type.
Your pattern and test text stay on your device. No data is sent anywhere, so it stays fast and private by default.
Frequently asked questions
What does Regex Generator do?
Regex Generator lets you generate your input right in the browser, with the result shown instantly and nothing uploaded.
Does Regex Generator cost anything?
No — Regex Generator is completely free, with no sign-up and no hidden limits.
Where is my data processed by Regex Generator?
Entirely in your browser — Regex Generator keeps your data on your own machine and sends nothing anywhere.
Which regex flavor does Regex Generator use?
Regex Generator runs your pattern with the browser's own JavaScript regex engine, live and on your device.
Does Regex Generator work offline?
Once the page has loaded, Regex Generator keeps working with no network connection.