Fast. Silent. Precise.
LAN-first file & clipboard sync — no cloud, no accounts, no friction.
Drop a file onto a device. It arrives.
Copy something on your phone. It's on your Mac.
- Chunked transfer (512 KB)
- Real-time speed + ETA
- Cancel anytime
- Bidirectional sync
- Direct system clipboard integration
- End-to-end encryption (ECDH P-256 + AES-256-GCM)
- Trust devices once, always, or per transfer
- Image, text, and metadata preview
- Auto-save after 8 seconds
- Real-time latency & connection health
- LAN-aware device detection
- Connection age + stability indicators
apps/web React 19 + Vite + TypeScript Dashboard UI
apps/server Fastify + ws WebSocket broadcaster
apps/agent Node.js + clipboardy Clipboard + file daemon
apps/e2e Playwright E2E test suite
packages/types Shared TypeScript types
pnpm workspaces + Turborepo.
pnpm install
pnpm dev # starts web + server + agent concurrentlyOr individually:
cd apps/server && pnpm dev # :3000 HTTP + :3001 WS
cd apps/web && pnpm dev # :5173
cd apps/agent && pnpm dev # clipboard daemonPoint the agent at a different server:
# Example
AETHER_SERVER=ws://192.168.x.x:3001 AETHER_NAME=my-mac pnpm dev# Run all e2e tests (requires dev server running)
pnpm --filter @aether/e2e exec playwright test
# Other modes
pnpm --filter @aether/e2e exec playwright test --ui
pnpm --filter @aether/e2e exec playwright test --headedTests cover: peer discovery, E2E encryption badge, file transfer (accept / reject / cancel), trust flow, clipboard sync. All run serially against the shared dev server.
Vite uses mkcert certificates (apps/web/certs/). Android Chrome auto-upgrades QR-scanned URLs to HTTPS — install the mkcert root CA on mobile to avoid certificate warnings.
See docs/how-it-works.md for protocol details, encryption flow, message types, and component architecture.