Features
Lupyd uses the Signal Protocol and MLS for conversation encryption, AES for files and backups, and gives you complete control over channels and custom roles.
Signal Protocol & MLS Encryption
Conversations are end-to-end encrypted using the Signal Protocol for direct messages and Messaging Layer Security (MLS) for group chats. Shared files, attachments, and chat backups are protected with AES encryption. Keys remain on your devices.
- Signal Protocol for 1-on-1 conversations
- Messaging Layer Security (MLS) for group chats
- AES encryption for files and backups
- Multi-device cryptographic key management
Custom Channel Creation & Organization
Create text, voice, or announcement channels on the fly. Organize conversations with targeted topics, channel-specific privacy settings, and dedicated access rules.
- Text, Voice, and Announcement channel types
- Public and private channel visibility controls
- Channel-specific permission overrides
- Real-time synchronization across devices
Arbitrary Roles & Granular Permissions
No fixed hierarchies like admin or moderator. Build any custom role from the ground up, define its exact permission flags, and assign it to any member. Anything can be anyone.
- No locked role hierarchies—create any role name
- Fine-grained workspace and channel permission flags
- Custom role colors, order, and member assignment
- Invite members and allocate access dynamically
Local Full-Text Search
Search across message history instantly. Lupyd maintains an inverted index locally on your device, returning results in milliseconds without sending your search queries to a remote server.
- Local on-device indexing
- Fast keyboard search shortcut
- Filter by channel, sender, and date
- Instant query results with zero server leakage
Client Security & Multi-Device Sync
Seamlessly switch between macOS, Windows, Linux, and Android with cryptographic session sync. Manage active sessions and encryption keys without central telemetry.
- Multi-device sync across macOS, Windows, Linux, and Android
- Zero tracking scripts, telemetry beacons, or third-party ads
- On-device encryption key management
- Complete data sovereignty and session revocation
Voice & Video Calls
Encrypted voice and video calling built directly into your channels and direct conversations. Connect with your team without leaving the app.
- Direct encrypted audio and video
- Screen sharing support
- Low latency connection
- Works across supported desktop and mobile devices
AES Encrypted File Sharing & Backups
Send documents, images, and project files with AES encryption. Files are encrypted before upload and decrypted on the receiving device. Export and restore encrypted chat backups.
- Client-side AES file encryption
- Inline image and document previews
- Encrypted chat backup exports and restores
- Drag-and-drop file transfers
Ready to try Lupyd?
Available on macOS, Windows, Linux, and Android.