OpenCloud

OpenCloud's backend is written in Go, and unlike PHP-based file servers it does not need a separate database — it writes file metadata directly to disk. That removes the PHP, MySQL, Redis, and Apache dependency chain of older platforms, giving it a radically simpler and more reliable architecture. Its stated goal is to be a simple and sovereign file-sharing platform under the Apache-2.0 license.

OpenCloud is distributed as a single Go binary and officially deployed with Docker Compose, with community Helm charts available for Kubernetes. A minimal setup comfortably handles around 20 concurrent users browsing via the web UI, and it scales from a Raspberry Pi up to data-centre workloads. You typically front it with Traefik or your existing reverse proxy plus Let's Encrypt for HTTPS.

Yes — optional integrations add Collabora Online or Euro Office for in-browser document editing, Apache Tika for full-text search, and ClamAV for antivirus scanning. Authentication goes through OpenID Connect, using either the embedded LibreGraph identity provider or an external IdP such as Keycloak or an LDAP directory. Desktop clients and Android/iOS apps complete the cloud-storage experience.