Build, test, and debug regular expressions
Last updated: 2/20/2026
The Regex Editor & Tester is designed with privacy in mind. We collect minimal information to provide and improve our service:
Important: We do not store, log, or transmit your regex patterns or test strings.
All regex processing happens entirely in your browser (client-side). This means:
We use minimal cookies and local storage for essential functionality:
We may use third-party services for:
These services may collect anonymous technical information as described in their respective privacy policies.
We implement appropriate security measures to protect against unauthorized access, alteration, disclosure, or destruction of information. Since we don't store your regex data, the risk of data breaches affecting your patterns is eliminated. For more information about our security practices, please see our About page.
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We may update this privacy policy from time to time. We will notify users of any material changes by posting the new privacy policy on this page and updating the "Last updated" date. Please refer to our Terms of Service for additional information about policy updates.
If you have any questions about this Privacy Policy, please contact us. You can also check our Help section for frequently asked questions about privacy and data handling.