ZimaOS

ZimaOS is a NAS operating system for x86-64 hardware that brings storage, backups and a broad app catalog together on a self-hosted device. It suits people who want to build a flexible home or small-team server; the free plan is a useful starting point, while its disk and member caps make ZimaOS+ the more practical fit for larger setups.

Overview

ZimaOS combines file management with storage pools, backup and sync, and apps that can be installed from its catalog or run through Docker. Users can manage, preview and share files from phones, cloud storage and external drives, and configure JBOD or RAID 0, 1, 5 or 6. That range makes it relevant both as a general-purpose NAS system and as a base for a collection of self-hosted services.

Its backup system follows a 3-2-1 strategy and can coordinate backups and sync across cloud, local and LAN storage. Remote access uses encrypted peer-to-peer connections, with internet ports closed by default. ZimaOS also uses offline local accounts and says it collects no telemetry or user data—appealing choices for people who want to keep control of their storage and accounts.

Key features

Storage, backup and apps

The App Store advertises more than 800 apps, with one-click installation and third-party Docker support. Featured integrations include Immich, Emby, Jellyfin, Plex, Home Assistant, Nextcloud, Paperless-ngx, n8n and Pi-hole. Container and virtual-machine support add flexibility for users who want services beyond file storage. The breadth is a strength, though managing a NAS and its apps will suit people willing to configure and maintain a self-hosted system rather than those seeking a hosted, hands-off service.

Sharing and compatibility

A main account can set folder-level access for family or small-team members, with personal folders private by default. ZimaOS connects over LAN or WAN from PC and Mac and can connect with NAS devices such as Synology and QNAP. The maker supports x86-64 hardware; driver or compatibility problems can be taken to the ZimaOS Discord community, so users relying on unusual hardware should weigh that community support route before committing.

Pricing

ZimaOS is freemium. The free plan costs nothing and includes core features, Zima Client for Mobile & PC, Thunderbolt support and Developer Mode, but is capped at 4 disks and 3 members. That is enough for an individual or modest household setup, but the member limit may constrain a family or small team, and the disk cap narrows room to expand.

ZimaOS+ costs $29, paid once for a Lifetime License. It includes everything in Free and removes the disk and user limits, making it the straightforward choice for larger storage pools or more than three people. The license is bound to one device; it can be transferred after being active for at least one year. That device tie matters if you expect to move the license between hardware sooner.

Platforms

ZimaOS lists Android, iOS, Linux, macOS, Windows, web, API, extension and self-hosted platforms. It is built for x86-64 hardware, with PC and Mac access over LAN or WAN; mobile clients are included in the free plan.

Who it's for

ZimaOS is a strong fit for individuals and hobbyists who want storage, backup and self-hosted apps in one NAS system without an upfront license fee. Families, small teams and creative studios that need more than four disks or three members will need ZimaOS+. It is less compelling for anyone who wants a managed service, or who needs broader hardware assistance than the Discord community route.

Pros and cons

• Pros: The free plan includes core features, mobile and PC clients, Thunderbolt support and Developer Mode, so users can start without paying.
• Pros: More than 800 advertised apps, Docker support, containers and virtual machines give self-hosters room to build beyond basic file sharing.
• Pros: Encrypted peer-to-peer remote access with ports closed by default, plus offline local accounts and no telemetry or user data collection, supports a privacy-conscious setup.
• Cons: The free plan stops at 4 disks and 3 members, which can force a paid upgrade as a household or storage pool grows.
• Cons: ZimaOS+ is tied to one device, and transfer is permitted only after at least one year of activation.
• Cons: Driver and compatibility help is directed to Discord, a limitation for users who prefer a different support channel.

Alternatives

TrueNAS is worth considering if you want a free community-edition download for any x86 hardware rather than ZimaOS's capped free plan and device-bound paid license. napp-it may suit noncommercial home use that fits its CS Home allowance of up to 3 servers, with no capacity limit and no support. DPlaneOS is a free Community Edition under AGPLv3 for people who want software they can use, modify and distribute on hardware they own. OpenNAS offers a free, self-hosted x86_64 beta installer for users comfortable choosing beta software. NovaNAS is a free open-source NAS operating system for users whose hardware can meet its Debian 13, memory, CPU and system-drive requirements. openmediavault is another free option, released under GNU GPL v3. Synology Active Backup for SaaS is a free add-on for Synology NAS users who need backup for Microsoft 365 and Google Workspace without a software license. For a different category of need, KitchenAsty is a free web and mobile app. Browse more options in NAS Software.

Verdict

Choose ZimaOS if you want a self-hosted NAS that combines flexible storage, multi-location backup and a large app catalog, with a free plan for a small setup and a clear one-time upgrade path. Look elsewhere if the 4-disk and 3-member free limits are too tight, the device-bound license does not suit your hardware plans, or you need a more formal support route.