Compare the Top Free Network Attached Storage (NAS) Software as of October 2026

What is Free Network Attached Storage (NAS) Software?

Network-attached storage (NAS) software, also known as network-attached storage operating systems or NAS server software, is the software that runs on a network-attached storage device or NAS server. Compare and read user reviews of the best Free Network Attached Storage (NAS) software currently available using the table below. This list is updated regularly.

  • 1
    XigmaNAS

    XigmaNAS

    XigmaNAS

    The XigmaNAS operating system can be installed on virtually any hardware platform to share computer data storage over a computer network. ‘NAS’ means “Network-Attached Storage”. XigmaNAS is the simplest and fastest way to create a centralized and easily-accessible server for all kinds of data easily accessed with all kinds of network protocols and from any network. XigmaNAS supports sharing across Windows, Apple, and UNIX-like systems. It includes ZFS v5000 , Software RAID (0,1,5), disk encryption, S.M.A.R.T / email reports etc. with the following protocols: CIFS/SMB (Samba), Active Directory Domain Controller (Samba), FTP, NFS, TFTP, AFP, RSYNC, Unison, iSCSI (initiator and target), HAST, CARP, Bridge, UPnP, and Bittorent which is all highly configurable by its WEB interface. XigmaNAS can be installed on Compact Flash/USB-key/SSD Drive, Hard disk or booted from a LiveCD/LiveUSB with a small usb-key/floppy drive for it’s configuration storage.
    Starting Price: Free
  • Previous
  • You're on page 1
  • Next