HeaderDeck — Privacy Policy

Last updated: July 14, 2026

Summary

HeaderDeck does not collect, store, transmit, or sell any user data. Period.

What the extension does

HeaderDeck lets you define HTTP request header rules (set, append, or remove headers) grouped into profiles, optionally scoped to URL patterns. These rules are applied by Chrome's built-in declarativeNetRequest engine. The extension's code never reads, intercepts, or inspects your network traffic or page content.

Data storage

Your profiles (header names, values, and URL filters you type in) are saved with chrome.storage.local on your own device only. They never leave your machine unless you explicitly use the Export button, which saves a JSON file to your computer.

Data collection

• No analytics or telemetry
• No remote servers — the extension makes zero network requests of its own
• No personal information, browsing history, or traffic contents are accessed
• No third-party services or SDKs

Permissions

• declarativeNetRequest — hands your header rules to the browser's rule engine
• storage — saves your profiles locally
• Host access (all sites) — required so your rules can apply to whichever sites you target with URL filters; no page content is ever read

Contact

Questions about this policy: open an issue on the project repository or contact the developer via the Chrome Web Store listing.