Privacy Policy

Last updated: May 27, 2026

RegexTester is designed to run JavaScript regular expressions locally in your browser. Your pattern, flags, test text, and replacement text are evaluated on your device.

Regex patterns and test text

The tool does not require uploading your test text or regex pattern to a server. Results are generated in the browser session.

Analytics and ads

This site does not currently include analytics or advertising code. If analytics or advertising is added later, this policy will be updated to describe the provider, data collected, and opt-out options.

Local storage

This version does not store patterns, test text, replacement text, or settings in local storage.

Contact

For privacy questions, contact chenmuxing168@gmail.com.