The challenge
Teams wanted WhatsApp-style messaging but needed data on their own server — not on third-party cloud platforms. They required groups, file sharing, and Android access.
Our solution
KC LanChat runs on FastAPI with WebSocket real-time messaging, JWT auth, group chats, attachments, and Android (Kotlin Compose) and web clients.
- Self-hosted on LAN or VPS
- Admin console and security wizard
- Read receipts and message search
- No per-user subscription fees