SendSelf is an end-to-end encrypted PWA for sharing text and files between your own devices. It is designed to feel like a private chat that works asynchronously: devices can be offline when a message is sent and catch up later.
- Text and files up to 50 MiB per file.
- Encrypted spaces that can be shared by multiple devices.
- Device pairing, per-device authentication, device roles, and revocation.
- Real-time delivery hints with polling as the reliable fallback.
- Optional at-rest protection for the local browser store.
- A Cloudflare Worker serving the PWA and API from one origin.
The application-level security model and its limitations are documented in Security. The project is not independently security-audited.
Requirements: Node.js 20 or newer and pnpm 10.33 or newer.
pnpm install
pnpm devpnpm dev applies local D1 migrations and starts the Worker and Vite development server. Open the URL printed by Vite. Web Crypto requires a secure context, so on a tailnet the development server issues its own trusted certificate and prints an https://…ts.net URL that any of your devices can open; otherwise use http://localhost, which browsers also treat as secure. See Development for HTTPS details and test setup.
pnpm test # unit and Worker integration tests
pnpm test:e2e # Playwright against a built PWA and isolated local Worker
pnpm typecheck
pnpm lint
pnpm build # production PWA buildStart with the documentation index, which links the architecture, security model, development, deployment, and API guides. The Worker package notes cover package-specific commands; TODO.md and AUDIT.md record open design work and deferred decisions.
This repository is intentionally an early WIP. In particular, metadata privacy, replay/order protection, automatic local retention, closed-app notifications, and some lifecycle flows remain open design or roadmap items. Start with TODO.md and AUDIT.md before treating the current implementation as a finished product.