ZimaOS

ZimaOS is a NAS operating system for supported x86-64 hardware, aimed at people who want file storage and self-hosted apps under one roof. Its strongest case is the combination of broad storage options, backup and sync, and a large app catalog; the free plan’s four-disk and three-member ceilings make it less suitable for a growing household or team.

Overview

ZimaOS brings file management, storage pools, backups and apps together on a device you manage yourself. Users can manage, preview and share files from phones, cloud storage and external drives. JBOD and RAID 0, 1, 5 and 6 cover several common storage arrangements, while the 3-2-1-based backup system coordinates backup and sync across cloud, local and LAN storage. That breadth makes it a practical candidate for a home NAS that also runs services, rather than a narrowly focused file server.

The App Store advertises more than 800 apps, with one-click installation and support for third-party Docker apps. Featured integrations include Immich, Emby, Jellyfin, Plex, Home Assistant, Nextcloud, Paperless-ngx, n8n and Pi-hole. Container and virtual-machine support further broaden its role, though the published plan details do not distinguish these core capabilities by tier.

ZimaOS connects over LAN or WAN from PC and Mac and can connect with NAS devices such as Synology and QNAP. Remote access uses encrypted peer-to-peer connections, with internet ports closed by default. Offline local accounts and the maker’s no-telemetry policy will appeal to privacy-conscious owners. Folder-level access lets a main account share with family or small-team members while keeping personal folders private by default.

Key features

Storage and backup

Support for JBOD and four RAID levels gives users flexibility in how they organize disks. The 3-2-1 backup approach and cloud, local and LAN sync options are a useful mix for people consolidating personal files and backups, although the system still depends on the owner’s hardware and storage setup.

Apps and compatibility

The large catalog and Docker support make ZimaOS more than a storage interface: users can add services such as media libraries, home automation and document management. It can also connect to Synology and QNAP NAS devices. For driver or compatibility trouble, the maker directs users to its Discord community, so those who need a formal support channel may want to weigh that limitation.

Pricing

ZimaOS is freemium. The free ZimaOS 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 a useful no-cost starting point for an individual or hobbyist, but the caps are a real constraint for a multi-user home or a server that expands over time.

ZimaOS+ costs $29, paid once for a Lifetime License. It includes everything in Free and removes the disk and user limits, making it the more practical fit for families, small teams and creative studios. The license is tied to one device; the maker says it can be transferred after it has been active for at least one year. Buyers should therefore treat it as a device-specific purchase rather than a general license for multiple systems.

Platforms

ZimaOS lists support across Android, iOS, Linux, macOS, Windows, web, API, extension and self-hosted platforms. Its core purpose is a NAS operating system for x86-64 hardware, with PC and Mac access over LAN or WAN.

Who it's for

ZimaOS is best suited to people who want a self-hosted storage hub that can also run a range of apps, and who value local accounts and closed-by-default remote access. The free tier fits individual users and casual experimentation; ZimaOS+ is better for households and small teams that need more than three members or four disks. It is a weaker fit for users who need multi-device licensing or want support beyond a community channel for hardware issues.

Pros and cons

• Pros: File management, several storage configurations, and 3-2-1-oriented backup and sync are brought together in one NAS system.
• Pros: More than 800 advertised apps, Docker support, containers and virtual machines give it room to serve uses beyond file storage.
• Pros: Encrypted peer-to-peer remote access with ports closed by default, offline local accounts and no telemetry suit users prioritizing control over their data.
• Cons: The free plan’s four-disk and three-member limits can force a paid upgrade as a setup grows.
• Cons: The ZimaOS+ license is bound to one device, with transfer allowed only after at least one year of activation.
• Cons: Driver and compatibility issues are directed to Discord, which may not suit users seeking formal support.

Alternatives

For a free NAS option that explicitly supports any x86 hardware and includes community support, consider TrueNAS; it is also available across mobile, desktop, web and self-hosted platforms. If noncommercial home use and a limit of three servers are acceptable, napp-it offers a free CS Home plan with no capacity limit and no support. DPlaneOS is a free Community Edition under AGPLv3 that users can use, modify and distribute on hardware they own. For a Debian-based system, NovaNAS is free but requires Debian 13, at least 2GB RAM, a 1-core CPU and a 20GB system drive plus data drives.

OpenNAS offers a free, open-source x86_64 beta installer for self-hosting on your own hardware. openmediavault is free software under GNU GPL v3, while XigmaNAS is a free, open-source NAS operating system for 64-bit systems. Synology Active Backup for SaaS is a free add-on for Synology NAS with no software license required. Browse more options in NAS Software.

Verdict

Choose ZimaOS if you want a flexible, self-hosted NAS that combines file handling, backup and sync, and a broad app ecosystem, especially if privacy-minded remote access matters to you. The free plan is a credible starting point, but families and teams should expect to need ZimaOS+ once they exceed four disks or three members. Look elsewhere if you need support beyond Discord or a license that is not tied to one device.