Bitchat is an open-source peer-to-peer messenger built for local communication when internet access is unreliable, censored, or unavailable. Key features include:
- Bluetooth Low Energy mesh messaging with nearby peer discovery and multi-hop relay
- No phone number, account, or central server required
- End-to-end encrypted private messages
- Nostr support for internet-based reach beyond the local Bluetooth mesh
- Native iOS, macOS, and Android apps with public source code on GitHub
Use Bitchat when off-grid, local, or censorship-resistant messaging matters more than mainstream convenience. For everyday encrypted messaging with a broader contact base, Signal is still the easier default.
Treat Bitchat as an off-grid and local-resilience tool, not a general Signal replacement. It may be useful when nearby local communication matters more than mainstream reach, but high-risk users should verify current audits, protocol documentation, device exposure risks, and operational-security assumptions before relying on it.