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Cosmos Server

Cosmos Server

A secure, self-hosted cloud solution for homes and businesses that prioritizes privacy, automation, and cost control without sacrificing functionality or convenience.

Cosmos Server is an open-source alternative to:

Cosmos Server preview

Cosmos Cloud

Cosmos Cloud is a self-hosted cloud platform designed for privacy-conscious users and organizations seeking complete control over their digital infrastructure. Whether for personal use, family privacy, or enterprise operations, Cosmos provides a secure, automated, and cost-effective alternative to traditional cloud services.

Key Features

  • Enterprise-Grade Security: Built-in SmartShield anti-DDoS, encrypted inter-cluster networking via Constellation VPN, and granular role-based permissions.
  • Smart Automation: Effortless cluster management, one-click app installations, and automated backups with customizable monitoring.
  • Complete Privacy: 100% data ownership with decentralized storage, eliminating exposure to centralized data breaches.
  • Multi-Provider Clusters: Scale across servers from providers like Hetzner, OVH, or bare metal with unified orchestration.
  • Predictable Pricing: Transparent pricing starting at $16/month (16GB RAM, 20 users), with no egress fees or billing surprises.
  • Built-in VPN: Secure remote access to home networks and services while maintaining full privacy and control.
  • Reverse Proxy & HTTPS: Automatic SSL certificates, domain management, and intelligent routing for secure external access.
  • App Marketplace: Deploy Docker containers with one-click installations for apps like Jellyfin, Home Assistant, and Nextcloud.
  • Air-Gapped Security: Complete network isolation for confidential projects and sensitive environments.
  • Smart Home Hub: Manage camera feeds and smart home devices locally for enhanced privacy.

Tech / Self-Hosting

  • Open Source: Available under CC 1.0 license with auditable code and strong community trust (5k+ GitHub stars).
  • Self-Hosting: Deploy on any infrastructure (bare metal, cloud providers) with automated cluster discovery and configuration.
  • Scalability: Supports multi-provider clusters and enterprise-grade security without complex Kubernetes setups.
  • Eco-Friendly: Reduces energy waste by decentralizing computing compared to traditional data centers.
  • Performance: Local access ensures instant response times, offline functionality, and no network latency.

Pricing: Free tier available; Cosmos Cloud Pro starts at $16/month with scalable options for businesses.