GrayMode Privacy Policy
Last updated: December 2024
Overview
GrayMode is a browser extension that applies grayscale filters to websites to help you focus. This policy explains what data the extension accesses and how it's used.
Data Collection
We collect nothing. GrayMode does not collect, store, or transmit any personal data, browsing history, or usage statistics.
Permissions Explained
GrayMode requires the following browser permissions:
storage— To save your settings (enabled categories, custom blacklist, intensity) locally on your device. This data never leaves your browser.activeTab— To detect which website you're currently viewing so we can apply the grayscale filter if it's on your list.host_permissions: <all_urls>— To inject the grayscale CSS filter on any website you choose to add to your blacklist.
Local Storage Only
All your settings are stored using chrome.storage.sync, which means:
- Data is stored locally in your browser
- If you're signed into Chrome, settings may sync across your devices via your Google account
- We have no access to this data — it's between you and your browser
Network Activity
GrayMode makes zero network requests. The extension works entirely offline. We don't have servers, analytics, or any backend infrastructure.
What We Don't Do
- Track your browsing history
- Collect analytics or usage data
- Show ads
- Sell data (we have none to sell)
- Use cookies
- Require account creation
Open Source
GrayMode is fully open source. You can audit the code yourself on GitHub to verify these claims.
Changes
If we ever change this policy, we'll update this page. Given our commitment to privacy, significant changes are unlikely.
Contact
Questions? Open an issue on GitHub.