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Live Demo: https://getpairlane.com/

A P2P file sharing tool using WebRTC. Transfer files directly between browsers without going through a server.

• P2P Transfer: Files are sent directly between browsers, not through a server
• E2E Encryption (Optional): AES-GCM encryption with key in URL fragment (#k=...), never sent to server
• Serverless: Runs on Cloudflare Workers + Durable Objects, no file storage on server
• Multiple Receivers: One sender can transfer to multiple receivers simultaneously (configurable concurrency)
• Drag & Drop: File selection UI supports drag and drop

1. Sender creates a room
2. Share the link (or room code) with receivers
3. Receivers join the room
4. Sender selects a file and sends
5. P2P transfer via WebRTC DataChannel

• Hono - Lightweight web framework
• Cloudflare Workers - Edge computing
• Durable Objects - WebSocket signaling
• Vite - SSR-enabled build tool
• WebRTC - P2P data transfer

Send and receive files directly from your terminal. Works with browsers and other terminals.

# Send a file
npx pairlane send /path/to/file

# Receive a file
npx pairlane receive <ROOM_ID_OR_URL> --output-dir ./downloads

Encryption is enabled by default. The send command prints a room URL with #k=... that you can share:

npx pairlane send /path/to/file
# → Share the printed URL: https://getpairlane.com/r/<ROOM_ID>#k=<KEY>

npx pairlane receive "https://getpairlane.com/r/<ROOM_ID>#k=<KEY>"

To disable encryption, pass --no-encrypt.

By default, the CLI connects to https://getpairlane.com. Override with:

PAIRLANE_ENDPOINT=https://your-server.com npx pairlane send /path/to/file

• Linux (x86_64)
• macOS (Intel / Apple Silicon)

cd cli
cargo run --release -- send /path/to/file
cargo run --release -- receive <ROOM_ID_OR_URL> --output-dir ./downloads

• Bun runtime

bun install
bun run dev

Vite dev server runs SSR on http://localhost:5173.

bun run build

bun run deploy

For generating/synchronizing types based on your Worker configuration run:

bun run cf-typegen

Pass the CloudflareBindings as generics when instantiating Hono:

// src/index.tsx
type Bindings = CloudflareBindings & { ROOM: DurableObjectNamespace }
const app = new Hono<{ Bindings: Bindings }>()

MIT