PeerShare: P2P File Sharing

PeerShare is a peer-to-peer file transfer application designed for speed, privacy, and performance. Built with React Native and WebRTC, it enables users to send files directly between devices over a local network (LAN) without using a third-party cloud.

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Demo

Demo.mp4

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Key Features

• True P2P:- Data travels directly from Device A to Device B. No intermediate storage.
• Secure:- No involvement of a third party service makes the file sharing highly secure.
• Quick:- Transfers files very fast over a high-speed LAN connection.

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Tech Stack

• Frontend: React Native, TypeScript
• Networking: react-native-webrtc (Data Channels)
• Signaling Server: Express.js, ws (WebSocket)
• File System: react-native-blob-util, react-native-documents/picker
• Protocol: ICE (Interactive Connectivity Establishment) via Google STUN.

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Installation & Setup

1. Clone the Repo

git clone [**React**'s][https://react.dev/]
cd PeerShare

2. Install Dependencies

npm install

3. Install iOS Pods (Mac Only)

cd ios && pod install && cd ..

4. Start Signaling Server

cd backend && npm i && npm run dev

5. Launch the application

npx react-native run-android
npx react-native run-ios

Make sure you add your local ip-address in /src/services/PeerConnection.ts

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Future Scopes

• Resume broken transfers.
• QR Code scanning for instant pairing.
• End-to-end encryption for file streams.
• Multi-file selection support.

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