Privacy Policy
Last Updated: October 2026. We believe tools should perform useful math without spying on their users.
1. Zero Personal Data Collection
WeightMaster does not require registration, login credentials, name, email address, or phone number. We do not maintain any user database or profiles.
2. 100% Client-Side Processing
Every conversion (including weight values, units selected, formula evaluations, and custom charts) executes exclusively inside your local web browser using JavaScript. No numbers, weights, or calculations are ever transmitted to or logged on our servers.
3. Local Storage Usage
We use your browser's standard localStorage solely for two non-identifying user experience preferences:
- Your preferred theme mode (
lightordark). - Your last-selected source and target units for convenient return visits.
This data remains strictly stored on your own device and is never sent across any network. You can clear it at any time in your browser settings.
4. Cookies & Third-Party Trackers
WeightMaster does not set any advertising, tracking, or profiling cookies. We do not sell, rent, or trade user data to any advertising exchanges or third parties.
5. Contact Regarding Privacy
If you have questions regarding this privacy policy, you may contact us at contact@weightconverterhub.link.