CasaOS is a free, open-source personal cloud OS with a one-click app store for Nextcloud, Jellyfin, Home Assistant, and more. Runs on Raspberry Pi to x86.
CasaOS is a free, open-source personal cloud operating system developed by IceWhale Technology, a company founded in 2020 and based in Shanghai, China. It originated as the pre-installed software for ZimaBoard, IceWhale's crowdfunded single-board server, before becoming a standalone open-source project that runs on almost any 64-bit Linux machine.
The project is hosted on GitHub under IceWhaleTech and has surpassed 33,000 stars, making it one of the most widely adopted home-server dashboards, alongside alternatives such as Umbrel and OpenMediaVault.
CasaOS runs on top of an existing Linux install (Ubuntu, Debian, Raspberry Pi OS) and provides a modern web dashboard for managing apps, files, and storage. Its one-click app store includes over 100 community-curated apps such as Nextcloud, Jellyfin, Home Assistant, Gitea, and AdGuard, each packaged as a Docker Compose-based 'CasaOS app.'
A built-in web file browser allows file management without needing SSH access, and storage tools visualize disk usage and let users mount external drives directly from the dashboard. Every installed app runs isolated inside its own Docker container.
CasaOS is entirely free and open-source, with no paid tiers, subscriptions, or licensing fees. Users only bear the cost of the hardware they choose to run it on, from a $35 Raspberry Pi to repurposed PCs or dedicated servers.
IceWhale Technology also sells ZimaBoard hardware and maintains ZimaOS, a more fully featured Debian-based personal cloud OS evolved from CasaOS, but CasaOS itself remains free for anyone to install on their own compatible hardware.
Yes, CasaOS is fully free and open-source with no paid tiers or subscriptions.
CasaOS runs on top of an existing Linux install and supports hardware ranging from a Raspberry Pi to repurposed laptops, PCs, and dedicated servers, including IceWhale's own ZimaBoard.
CasaOS is developed by IceWhale Technology, a company founded in 2020 and based in Shanghai, China, with contributions from an active open-source community.
CasaOS's one-click app store includes over 100 community apps such as Nextcloud, Jellyfin, Home Assistant, Gitea, and AdGuard, each running in its own Docker container.
CasaOS is the free, open-source dashboard project that runs on any compatible Linux machine, while ZimaOS is a more complete Debian-based personal cloud operating system evolved from CasaOS, made by the same company for Zima-brand hardware.