Privacy Policy
Last updated: April 2026
What Instant Unit Converter does
Instant Unit Converter is a browser extension that provides a zero-latency popup for converting between various units of measurement (Length, Mass, Temperature, etc.). All calculations happen instantly within the extension's code directly on your device.
What data is stored — and where
All data is stored exclusively in your browser using chrome.storage.local. It never leaves your device. Specifically, the extension saves:
- Your selected category — to reopen the extension on the exact category you were last using (e.g., Length vs. Temperature).
- Your selected unit pairs — to remember your preferred conversions (e.g., automatically defaulting to Meters and Feet the next time you open the category).
What data is NOT collected
- No personal information (name, email, age, address)
- No account or authentication data
- No financial information
- No health information
- No location data
- No keystroke or mouse activity logging
- No web browsing history or page content
Data sharing
We do not share any data with any third party. There is no server, no analytics, no tracking, no advertising, and no telemetry of any kind. Instant Unit Converter has zero network requests.
Data retention and deletion
Your unit preferences remain stored locally so the extension stays fast and personalized to your workflow. You can delete this data at any time by right-clicking the extension icon, selecting "Manage extension", and clearing its local storage, or simply by uninstalling the extension.
Permissions explained
- storage — requested solely to use
chrome.storage.localto save your last-used unit preferences.
Children
Instant Unit Converter does not knowingly collect any information from children under the age of 13. The extension collects no personal information from anyone.
Changes to this policy
If we ever make meaningful changes to how data is handled, we will update this page and the date at the top. Since all calculations and storage stay local, any future changes would only ever affect what happens on your own device.
Contact
If you have any questions about this privacy policy, please reach out via the Chrome Web Store support link on the extension's store page.