About Regex Tester

Regex Tester is a free, fast, and privacy-focused online utility for testing and debugging regular expressions with live matching.

Privacy First

All processing happens locally in your browser using JavaScript. We never transmit, store, or log any of your data.

Tech Stack

Built with Astro and Tailwind CSS, deployed on Cloudflare Pages.

Contact

Found a bug or have a suggestion? Feel free to reach out at contact@regex-tester.dev.