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Coop

Secure messaging for desktop. Cross-platform Nostr chat client.

Overview​

Coop is a desktop Nostr client focused on secure messaging, built by the Lume team. It provides a fast, reliable messaging experience across Windows, macOS, and Linux.

Key Features​

Cross-Platform Desktop​

┌─────────────────────────────────────────────────────────────────┐
│                         Coop                                    │
├─────────────────────────────────────────────────────────────────┤
│                                                                 │
│   Platforms:                                                    │
│   ├── Windows                                                  │
│   ├── macOS                                                    │
│   └── Linux                                                    │
│                                                                 │
│   Features:                                                     │
│   ├── Secure messaging                                         │
│   ├── Fast performance (Rust)                                  │
│   └── Modern UI (GPUI)                                         │
│                                                                 │
└─────────────────────────────────────────────────────────────────┘

Core Features​

FeatureDescription
Private messagesEncrypted conversations
Cross-platformWindows, macOS, Linux
FastBuilt in Rust
Modern UIGPUI framework
InteroperableWorks with other Nostr clients

Interoperability​

Works with:

  • Amethyst
  • 0xChat
  • Coracle
  • Flotilla
  • noStrudel

Technical Stack​

ComponentTechnology
LanguageRust
UIGPUI
NostrRust Nostr SDK
StatusAlpha

Current Status​

Alpha release with limitations:

  • No credential storage yet
  • Initial loading may be slow
  • Active development

Comparison​

FeatureCoop0xChatBlowater
PlatformDesktopMobileWeb
LanguageRustFlutterTypeScript
FocusMessagingMessagingMessaging
StatusAlphaStableStable

See Also​