StopAccess is a precision site blocking and productivity extension. It combines rigorous browser website blocking via Declarative Net Request, local active tab tracking, strict schedules, Guardian PIN lockdowns, and optional NextDNS cloud synchronization.
| Feature | How it works |
|---|---|
| Browser Website Blocking | Tracks active tab time, blocks selected domains via fast Declarative Net Request rules, and displays strict "Access Denied" overlays. |
| NextDNS Cloud Sync | Synchronizes custom denylists, privacy blocklists, security settings, and profile-wide controls directly with the NextDNS API. |
| Active Usage Tracking | Accurately measures active tab duration on mapped domains to enforce precise daily usage limits entirely locally. |
| Focus Sessions | Starts timed sessions that immediately enforce temporary strict limitations on specific services. |
| Strict Lock & Guardian PIN | Designed defensively to protect settings; introduces a strict local PIN to stop impulsive bypasses during focus sessions. |
The codebase is organized as an NPM workspace containing the extension and its shared core packages:
extension/: The core browser extension built with React and Tailwind CSS.packages/: Core domain routing, state, and NextDNS API logic.
- Node.js 18+
From the repository root:
git clone <repository-url>
cd gate
npm installRun the extension in watch mode to automatically rebuild assets during development:
npm run watch -w extensionTo load the extension:
- Navigate to
chrome://extensions/ - Enable Developer mode in the top right.
- Select Load unpacked and locate the
gate/extension/directory.
Run TypeScript compilation, linting, and extension production build verification:
npm run verify:extensionStopAccess prioritizes localization constraint mapping. It processes active tabs via the Background Service Worker without passing context, strings, or analytics to any external endpoints.
MIT