# Leank — Instant Secure P2P Communication Platform > https://leank.space ## What is Leank? Leank is a free, open, browser-based Peer-to-Peer (P2P) communication platform. It enables instant video calls, voice chat, screen sharing, file sharing, text messaging, and shared YouTube watch sessions — all without signups, downloads, or backend servers. ## Core Value Proposition - **Zero accounts required** — start communicating in seconds - **Peer-to-peer architecture** — data flows directly between users, never through a central server - **End-to-end privacy** — no recordings, no logs, no data retention - **Browser-native** — works in any modern browser on any device ## Key Features 1. **Video & Voice Calls** — High-quality WebRTC-based P2P video and audio communication 2. **Instant Messaging** — Real-time text chat with no message history stored on servers 3. **Fast File Transfer** — Share files of any size directly between peers with no upload limits 4. **Screen Sharing** — Share your screen with connected peers in real time 5. **Shared YouTube Workspace** — Watch YouTube videos together with synchronized playback 6. **QR Code Room Sharing** — Instantly share room links via QR codes ## How It Works 1. A user creates a room — generating a unique, secure room ID 2. The room link or ID is shared with peers 3. Peers join the room and a direct WebRTC connection is established 4. All communication (video, audio, chat, files) flows P2P — no intermediary servers ## Technology Stack - **Framework**: Next.js (React) with App Router - **P2P Layer**: WebRTC via Trystero + simple-peer - **Signaling**: Torrent-based signaling (no centralized signaling server) - **Styling**: Tailwind CSS v4 - **Icons**: Lucide React - **Design**: Neo-brutalist, high-contrast, black-and-white UI ## Use Cases - Quick private conversations without creating accounts - Sharing sensitive files without uploading to cloud services - Remote collaboration with screen sharing - Watch parties with synchronized YouTube playback - Anonymous communication in temporary rooms ## Privacy & Security - No user accounts or personal data collection - No backend database — zero data persistence - P2P connections via WebRTC with DTLS encryption - STUN servers used only for NAT traversal (connection handshake), never for relaying content - Rooms are ephemeral — destroyed when all participants leave ## Pages - Homepage: https://leank.space - About: https://leank.space/about - Features: https://leank.space/features - How It Works: https://leank.space/how-it-works - FAQ: https://leank.space/faq - Contact: https://leank.space/contact - Privacy Policy: https://leank.space/privacy - Terms of Service: https://leank.space/terms ## Contact - Website: https://leank.space - Developer: https://mnsh.online