Alternatives to QNAP QTS
Standard NAS operating system for QNAP storage appliances with an ext4 base. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
QNAP QTS
Standard NAS operating system for QNAP storage appliances with an ext4 base.
Replacements
Listings that take over the same core job as QNAP QTS.
Synology DiskStation Manager
Web-based NAS operating system that powers every Synology DiskStation device.
Synology DiskStation Manager has a polished web interface and large package center, but it only runs on Synology hardware instead of QNAP.
QNAP QuTS hero
ZFS-based QNAP NAS operating system with snapshots and inline deduplication.
QNAP QuTS hero replaces the ext4 base with ZFS for inline deduplication, compression and snapshots, but needs certified hardware and more RAM.
Asustor Data Master (ADM)
NAS operating system for Asustor devices with an app catalog and surveillance suite.
Asustor Data Master offers an app catalog and Btrfs snapshots, but it only runs on Asustor hardware and has a smaller third-party ecosystem.
OpenMediaVault
Debian-based network-attached storage operating system with a browser web interface.
OpenMediaVault is a free, open-source Debian-based NAS system that runs on generic low-power hardware, with community plugins of varying quality.
XigmaNAS
FreeBSD-based NAS operating system, formerly known as NAS4Free.
XigmaNAS is a free, open-source FreeBSD-based NAS system for generic hardware with broad protocol support, but a smaller community.
Rockstor
Open-source Btrfs NAS platform built on openSUSE for custom storage builds.
Rockstor is an open-source Btrfs NAS platform built on openSUSE for custom builds, with snapshots and replication but a smaller plugin ecosystem.
HexOS
Consumer-friendly home server operating system built on top of TrueNAS Scale.
HexOS is a paid, consumer-friendly home server system built on TrueNAS Scale that runs on your own hardware, with a newer and smaller community.
Houston UI
Open-source Cockpit-based management interface for self-built NAS servers.
Houston UI is an open-source Cockpit-based management interface for self-built NAS servers, developed mainly around 45Drives hardware.
Similar software
Related functionality, not a direct replacement.
CasaOS
Personal cloud dashboard that installs Docker apps on a home server in one click.
YunoHost
Debian-based server distribution that installs and maintains self-hosted apps for you.
Runtipi
Home server manager with a curated app store for self-hosted services.
Cosmos Cloud
Self-hosted server platform bundling a reverse proxy, authentication and container management.
Webmin
A web-based control panel for administering Unix and Linux servers and the services running on them.
