Privacy Policy

Last updated: September 10, 2026

1. Overview & 100% Client-Side Processing

RegexCalc (regexcalc.net) is built as a client-side developer utility. All text, code, queries, and calculations you enter are processed entirely in your web browser. No data or user input is sent to, logged by, or stored on our servers.

2. Third-Party Advertising (Google AdSense)

We use Google AdSense and other third-party advertising companies to serve advertisements when you visit our website. These companies may use cookies and web beacons to collect non-personally identifiable information about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.

• Google, as a third-party vendor, uses cookies to serve ads on regexcalc.net.
• Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the Internet.
• Users may opt out of personalized advertising by visiting Google Ads Settings or through www.aboutads.info.

3. Local Storage

We use your browser's local storage solely to remember user interface preferences, such as your dark/light theme setting. This data remains on your local device and is never transmitted to us.

4. External Links

Our website may contain links to external sister sites and documentation. We are not responsible for the privacy practices or content of external websites.

5. Contact Information

If you have any questions about this Privacy Policy, you may contact us at [email protected].