Sparrow BTC Dashboard is a lightweight, privacy-first browser extension that gives you a clean Bitcoin (BTC) price overview and a fiat converter directly inside your toolbar popup — with zero permissions and zero network calls.
Designed to be fast, minimal, and respectful of your privacy. No fluff, no tracking, no surprises.
Dedicated exclusively to Bitcoin (BTC) market data, pricing, and short-term trends. Clean and focused.
Instantly convert BTC values to major world currencies — USD, EUR, GBP, JPY, and more.
View a clean historical price trajectory graph directly inside the popup, with no extra clicks.
Set quick session-only target alerts right inside the popup menu. They vanish when the popup closes.
Built from the ground up with a strict “Zero Permissions & Zero Network” architecture. Your data never leaves your machine — because there is no data.
Declares no browser API permissions and no host permissions whatsoever.
Performs zero fetch(), XMLHttpRequest, or external API calls. All figures are bundled static demo data.
Does not collect, store, track, log, or transmit any personal user information, cookies, or analytics.
Uses no localStorage or chrome.storage. All data lives purely in RAM and disappears when the popup closes.
Three simple steps. No account, no signup, no email.
Add Sparrow BTC Dashboard to your browser in one click. Review the permission list — you'll see it's empty.
Click the Sparrow icon in your toolbar. The BTC price and sparkline load instantly from bundled data.
Convert BTC to any fiat currency, set a quick alert, then close — everything vanishes from memory immediately.