What is Sypher?
A self-hosted communication platform built for communities that refuse to compromise on data ownership, privacy, or capability.
Why Sypher exists
Modern communication platforms force a trade-off: powerful features in exchange for your data and your trust.
Discord, Slack, and Teams store your conversations, files, and metadata on servers you don't own, can't inspect, and can't control. Discord updated its privacy policy in September 2025 to expand how it uses your data for sponsored content. One policy change, one breach, one shutdown — and years of institutional knowledge can vanish overnight.
Sypher was built to eliminate that trade-off entirely. Your messages, files, and metadata never leave your server unless you choose federation. No policy changes that affect your data. No third-party approval to access your own history. No platform risk.
Full-featured communication, project management, file sharing, voice, and more — running entirely on hardware you own.
Built by SyCom, Sypher is designed for gaming communities, organisations, teams, and anyone who takes data sovereignty seriously. Because owning your data on someone else's infrastructure and owning your data on your own hardware are not the same thing.
Our promise if we ever stop
If SyCom ever ceases development of Sypher or discontinues the platform, we will — within 90 days of the public announcement — release the complete Sypher Core source code and all SyCom-developed modules under a non-commercial open-source licence.
Your data already lives on your hardware. This promise ensures the software does too. No orphaned platform, no locked-out communities, no dead end.
This is not a legal obligation — it is a public commitment from the people who built Sypher to the people who trusted it.
How Sypher compares
A side-by-side look at what matters.
| Feature | Sypher | Discord | Slack | Teams |
|---|---|---|---|---|
| Self-hosted | Yes | No | No | No |
| End-to-end encryption | Yes (DMs + optional channels) | No | No | Partial |
| Data ownership | 100% yours | Theirs | Theirs | Microsoft |
| Voice & video | LiveKit WebRTC | Yes | Huddles | Yes |
| Project management | Kanban + Gantt | No | Via integrations | Planner |
| Asset / inventory tracking | Built-in module | No | No | No |
| Modular architecture | Toggle per workspace | Monolithic | Apps | Apps |
| Federation | Server-to-server | No | Slack Connect | Cross-tenant |
| Price | Free (core) | Freemium | Paid | Paid |
Built for real deployments
Docker Compose up. That's it.
Express + PostgreSQL
TypeScript API backed by PostgreSQL 15 with connection pooling. Redis 7.2 for pub-sub and caching.
LiveKit WebRTC
Enterprise-grade voice and video with push-to-talk, screen share, and ML-powered noise suppression.
Traefik + TLS
Automatic HTTPS via Let's Encrypt. Reverse proxy handles routing, load balancing, and certificate renewal.
Tauri Desktop
Native Rust backend for Windows and Linux. OS keychain, system tray, single-instance, and auto-update.
RCON Console
Remote admin console with real-time metrics, tracing, backup scheduling, and process isolation.
Module SDK
Sandboxed plugin architecture with permission-gated access. Build and distribute your own modules.
Built for
Gaming Communities
Voice channels, events, inventory tracking, and moderation tools built for organized play.
Teams & Orgs
Project boards, file sharing, calendars, and channels — everything in one self-hosted stack.
Privacy Advocates
E2EE, ABAC permissions, no telemetry, no data harvesting. Your conversations stay yours.
Enterprise & Gov
SSO, audit logs, federation, CAC/PIV auth, and compliance-ready infrastructure.