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OpenCloud

OpenCloud is a free, open-source platform for self-hosting personal cloud storage and collaboration on your own server.

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OpenCloud is a free, open-source platform for self-hosting personal cloud storage and collaboration on your own server. It bundles file sync and share, calendars, contacts, and office documents in a single web dashboard, giving self-hosters and small teams a private alternative to commercial cloud services. The server backend is written in Go and runs as a Docker container.

Platform availability

Available on 4 of 9 platforms

Health score?A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). When the source code has been checked, a fifth factor, security check (20%: automated scan for committed secrets, unsafe desktop-app settings, known-vulnerable dependencies and project hygiene; any serious finding caps it at 20), is added. Factors without data are left out and the rest are rescaled.

84/100 Excellent

Maintained
100last commit 7 days ago
Popular
766,100 GitHub stars
Easy to install
804 install platforms, install notes, setup guide, Docker image
Light to run
602 GB minimum RAM, runs on ARM

Availability: platform listings confirmed today, links checked 13 days ago

GitHub stars
6,100
Open issues
462
Last commit
2026-10-06
Latest release
v8.1.0
License
Apache-2.0
Activity
declining

Checked 7 days ago - source: GitHub (opencloud-eu/opencloud)

Resources & Compatibility

Minimum requirements: 2 GB RAM, 1 CPU core(s), 20 GB disk. ARM (e.g. Raspberry Pi) is supported.

Checked 14 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Install Docker first Run the official Docker install script so your machine has Docker, the tool that runs OpenCloud's containers. Without Docker, the container setup cannot start and the OpenCloud login page will not load. source
  • Prepare the .env and compose file Copy .env.example to .env, then uncomment COMPOSE_FILE=docker-compose.yml:traefik/opencloud.yml to select the minimal OpenCloud setup. These files tell Docker Compose, the helper that starts the container stack, which settings and services to load; missing them can make the stack fail to start or run incorrectly. source
  • Run the one-time init command Before starting the full server, run the init command with your config folder, data folder, and admin password (IDM_ADMIN_PASSWORD). It creates the required configuration, storage folders, and admin account; skipping it or losing those folders can leave OpenCloud without its settings or users. source
  • Unraid first boot Create the OpenCloud config and data directories before first start and give the Unraid user 'nobody' read/write access to both. The container performs a one-time init on first boot to establish IDM_ADMIN_PASSWORD and then stops; remove 'init' from Post Arguments in the advanced view and restart it. source

Fetched 5 days ago - each note links to its source

Alternatives (12)

  • Dropbox - Dropbox is a containerized client that runs the official Dropbox sync agent on a self-hosted server, keeping a local folder backed up and s…
  • Filen - Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption.
  • Google Drive - Cloud service for file storage and sync, integrated with Google Docs suite, facilitating collaboration and offering scalable storage soluti…
  • MEGA - Cloud-storage service with end-to-end encryption, selective synchronization, and shared folders without ads.
  • Microsoft OneDrive - Access, edit, and share your files across devices with 5 GB free storage.
  • Nextcloud - Nextcloud is a self-hosted, open-source file and content collaboration platform that stores, syncs, and shares your files so you can access…
  • Proton Drive - Emphasizes privacy with end-to-end encryption, Proton Drive safely stores, synchronizes, and shares files across devices via web and mobile…
  • Seafile - Seafile is an open-source, self-hosted cloud storage and file sync platform that lets individuals and teams store, sync, share, and organiz…
  • Sync-in - An open-source platform to store, share, collaborate, and sync your files.
  • kDrive - kDrive is a Swiss online storage service that respects its users' privacy and makes storing, sharing & collaborating on files a breeze.
  • ownCloud - ownCloud is a self-hosted file sync and sharing platform that lets individuals and teams access, manage, and share files from web, desktop,…
  • pCloud - pCloud is a cloud-based storage solution that centralizes and makes digital content like images, videos, and documents accessible from any…

Checked 11 days ago - source: AlternativeTo

Common questions

What must I run before starting the full OpenCloud server?

Run the one-time init command with your config folder, data folder, and IDM_ADMIN_PASSWORD. It creates the required configuration, storage folders, and admin account.

Does OpenCloud need an external database?

No, the backend does not use a database and stores all data in the filesystem. By default, its root directory is $HOME/.opencloud/.

How are OpenCloud users authenticated?

The backend authenticates users via OpenID Connect. It can use an external identity provider such as Keycloak or the embedded LibreGraph Connect identity provider.

What should I know about mounted folder permissions?

The host user with UID 1000 has full access to the mounted OpenCloud directories. Any local account with that UID can read, modify, or delete config and data files.

Answers sourced from docs.opencloud.eu, docs.opencloud.eu, github.com

Community

Collected 13 days ago - public community threads

Install guides