Your messages are encrypted.
Your metadata isn't.
Most secure messengers protect what you say—but leak who you talk to, when, and how often. Chatter protects everything.
No spam. Open source. GPL-3.0.
Beyond encryption
Encryption protects your content. We protect your social graph, your communication patterns, your identity. The server knows nothing—by design.
Hide your social graph
Who you talk to is as sensitive as what you say. Sealed Sender ensures the server never knows who sent a message—only the recipient can decrypt the sender's identity.
Defeat traffic analysis
Anonymous inboxes with blind signatures break the correlation between sender and recipient. Your communication patterns stay invisible to everyone—including us.
AI without surveillance
Search and summarize your messages with Ollama. All inference runs locally on your device. Your data never touches our servers or any cloud.
Built with Rust and Go
Native performance. No Electron. No browser engine. Lightweight with native Wayland support on Linux.
Our tech journey →