Mesh
Networking
When the internet fails, your messages don't. Fernweh relays them peer-to-peer through nearby phones to keep you connected.
Stay connected,
anywhere
Mesh networking turns nearby phones into relays over Bluetooth Low Energy and Wi-Fi Direct, creating a resilient network that keeps working with no signal, SIM, or Wi-Fi.
Direct Device Connections
When the internet fails, your device connects directly to nearby phones over Bluetooth Low Energy and Wi-Fi Direct. Messages hop from phone to phone until they reach their destination, still end-to-end encrypted the whole way.
Community Network
Every device running Fernweh becomes a node in the network. The more people using it, the stronger and more resilient the mesh becomes.
Automatic Routing
Fernweh routes across the best available path and falls back to the internet relay when you're online. The switch between online and offline is seamless. Messages just keep flowing.
How it works
See the difference between traditional centralized messaging and resilient peer-to-peer mesh networking.
Centralized
Traditional messaging apps route every message through centralized servers. Your device sends data to the server, which processes and forwards it to the recipient's device. This hub-and-spoke architecture is fast and efficient when network infrastructure is available, but creates a single point of failure.