Privacy Policy
Last updated: May 2026
FeaturePeep is a browser extension. It has no backend, no accounts, and no analytics. It does not collect, transmit, or store any data outside of your device.
What FeaturePeep does not do
- Does not collect any user data
- Does not make network requests of its own
- Does not contact FeaturePeep servers or feature flag provider APIs
- Does not track usage, sessions, or analytics of any kind
- Does not use cookies
How flag data is read
Flag data is read passively from the browser's existing SDK network traffic. The extension intercepts fetch, XHR, and SSE requests that the page's own SDK is already making. No additional requests are initiated.
Data storage
Flag overrides are stored in Chrome's local extension storage (chrome.storage.local).
Overrides are scoped per origin — overrides on staging.example.com are separate from app.example.com.
This data never leaves your device and is cleared when you click "Clear all overrides" or remove the extension.
The following is stored locally:
- Flag names and values seen on visited pages
- Override values you set
- Search bar state per origin
- Demo mode dismissed state
Permissions
storage
Persists flag overrides and UI preferences across popup sessions.
tabs
Identifies which tab is active so the popup shows the correct page's flags.
windows
Tracks which browser window is focused for the same reason.
No host permissions are requested. The extension reads traffic passively via content scripts.
Security & contact
Found a vulnerability? Please report it via SECURITY.md or open a private GitHub issue.