Messaging & Channels
Public, private, and federated channels. Real-time delivery via WebSocket. Reactions, threads, file sharing, voice and video messages, GIFs, link previews. Sub-50ms message delivery.
Video & Voice Calls
Peer-to-peer WebRTC. Group calls up to 25 participants. Screen sharing with annotation. Collaborative whiteboard. Call recording with AI transcription. No external STUN/TURN servers needed.
Built-in Email Client
Full IMAP/SMTP email alongside your chats. No more switching between apps. Threading, search, attachments. Opt-in per user — doesn't clutter the UI for those who don't need it.
Calendar & Meetings
Built-in calendar with scheduling, RSVPs, and recurring events. Meeting links auto-generated. Meeting notes and action items. The meeting system IS the call system — one click to join.
Encrypted at Rest
Every message encrypted with AES-256-GCM before hitting the database. Stealing the DB gives attackers encrypted blobs, not conversations. Blind search index via HMAC — search works without exposing plaintext.
Self-hosted AI
Optional Ollama integration for AI summaries, meeting transcription, and content moderation. Runs on YOUR hardware. No data sent to OpenAI, Anthropic, or anyone else. Off by default.
Federation
Connect Mute instances across organizations. Shared channels with full identity isolation — public personas protect real names. Your server, your rules, but you can still talk to partners.
Admin Transparency
Every admin action that touches user data generates a permanent notification to affected users. No silent surveillance. Users always know when admins access their data and why.
Family & Child Safety
Guardian-managed accounts for minors. Contact approval required. NSFW detection. Protective blocking. Family safety dashboard. Age restrictions invisible from outside — minors indistinguishable from privacy-conscious adults.
| Feature | Mute | Slack | Teams | Discord |
|---|---|---|---|---|
| Price per user/month | $1 | $8.75 | $6 | Free* |
| Self-hosted | Yes | No | No | No |
| Encrypted messages at rest | AES-256-GCM | Enterprise only | At rest only | No |
| Video calls built-in | Yes (P2P) | Huddles only | Yes | Yes |
| Email client | Built-in | No | Outlook separate | No |
| Calendar | Built-in | Integration | Outlook calendar | No |
| Federation | Yes | Slack Connect ($) | Limited | No |
| Admin transparency | Users notified | No | No | No |
| Your data stays on your server | Always | Their cloud | Azure | Their cloud |
| Open source | Source available | Proprietary | Proprietary | Proprietary |
curl -sSL https://get.mute.app | sh
# Or Docker Compose
docker compose up -d
# Visit http://localhost:8080 and create your admin account
SMB / Small Team
5–50 users. Any VPS with 2GB RAM. Single Docker Compose. Perfect for agencies, startups, small businesses, and families who want privacy without complexity.
Enterprise / On-Premise
50–100,000+ users. Your data center, your hardware. LDAP/SSO integration, compliance retention, audit logging. MDM support for managed devices. One server handles 100,000+ concurrent users.
Federated / Multi-Site
Connect multiple Mute instances across offices, partners, or organizations. Shared channels with identity isolation. Each site owns its own data. No central point of failure or control.
62,376 req/s
Measured: static file serving at 1,000 concurrent connections. 1.87 million requests in 30 seconds. 100% success rate. Server at 55% CPU.
37,000 req/s
Measured: authenticated database queries. JWT verification + PostgreSQL per request. 13ms P50 latency. Server at 65% CPU.
17,757 req/s
Measured: message list with AES-256 decryption of 50 messages per request. 198 MB/s of decrypted content. Heaviest endpoint, server at 55% CPU.
100,000+ concurrent users
Real-world capacity per server. Most users send ~100 messages/day — 100k connected users generate ~500 msg/s average, well within measured throughput. WebSocket connections use ~3GB RAM for 100k users.
✓ Unlimited channels
✓ Video calls & screen sharing
✓ Email client & calendar
✓ Federation
✓ Community support
✓ Priority email support
✓ LDAP / SSO integration
✓ MDM device management
✓ Compliance retention
✓ Custom branding
✓ Dedicated support + SLA
✓ Disaster recovery vault
✓ On-call engineering
✓ Custom integrations
✓ Multi-site federation setup
Linux (.deb)
Native desktop client via APT. First-class citizen — not an Electron wrapper.
Coming Soon
VoidPhone
Linux-first smartphone with Mute pre-installed. Native .deb client via APT. WebSocket push — no Google or Apple notification services. Your phone, your server, your conversations.
voidphone.comFLH1 Convergence Hub
Dock your VoidPhone for a full desktop experience. Mute scales from mobile to 1080p desktop seamlessly. Video calls, whiteboard, calendar — all on the big screen.
furilabs.comFrom family group chat to 100,000-seat enterprise.