Privacy Policy

Last updated: June 2026

Overview

Calipers is a free, open-source browser extension. This policy explains what data we collect, store, and transmit — which is as little as possible.

Data we collect

We collect nothing. Calipers does not collect, store, or transmit any personally identifiable information, browsing history, or usage data.

Local storage

Calipers stores your preferences locally in your browser using chrome.storage — things like your last active mode and guide positions. This data never leaves your device and is not accessible to us or any third party.

Permissions

Calipers requests certain browser permissions solely to deliver its core functionality. No permission is used to collect or transmit data.

activeTabto inject the measurement overlay into the page you are currently viewing

scriptingto run the measurement tools on the active tab

storageto save your preferences locally

tabsto capture a screenshot when you use the export feature

Third parties

Calipers does not share data with any third party. There are no analytics, no tracking scripts, and no external services.

Open source

Calipers is fully open source. You can inspect every line of code at github.com/heysolomon/calipers and verify these claims yourself.

Contact

If you have questions about this policy, open an issue on GitHub or reach out at akusonsolomon15@gmail.com.