Why Columba
No Internet Needed
Works without cell towers, servers, or internet. Your messages find their way through the mesh.
Encrypted by Default
End-to-end encryption on every message. No accounts, no tracking, no central servers.
Multiple Transports
Bluetooth LE for nearby, WiFi at home, LoRa via RNode for distance, or TCP to reach the world.
Voice Calls
Make encrypted voice calls right over the mesh network. No SIM card or phone number required.
Your Identity, Your Device
Cryptographic identity generated on your device. Share via QR code. No phone number needed.
Open Source
MIT licensed and fully auditable. Inspect the code, contribute, or fork it yourself.
How It Works
Create Identity
Generate a cryptographic identity on your device in seconds. No email, no phone number.
Connect
Enable Bluetooth, WiFi, or pair an RNode. Columba discovers peers automatically.
Message
Send encrypted messages that hop across the mesh until they reach their destination.
Connect Your Way
Bluetooth LE
~100m range
Connect to anyone nearby, anywhere. No infrastructure needed.
WiFi
Home & local
Use your existing WiFi network for faster local mesh connections.
LoRa / RNode
Up to 20+ km
Long-range radio with an RNode device. Reach across mountains and valleys.
TCP / Internet
Global reach
Connect to any Reticulum transport node worldwide when internet is available.
No accounts. No servers. No tracking.
Just encrypted packets between you and the people you choose.
Get Columba
Community
Built by volunteers who believe communication is a right, not a service.