ReadyNAS is described as 'by NETGEAR' and is a NAS system in the network & admin category. There are more than 10 alternatives to ReadyNAS for a variety of platforms, including Linux, Windows, Self-Hosted solutions, Mac and BSD. The best alternative is OpenMediaVault, which is both free and Open Source. Other great apps like ReadyNAS are TrueNAS, Unraid, XigmaNAS and Amahi Home Server.
ReadyNAS is mainly a NAS System but alternatives to it may also be Virtualization Tools or Web Servers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of ReadyNAS.
OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, RSync, BitTorrent client and many more. It can be enhanced via plugins.
TrueNAS (formerly FreeNAS) is an operating system that can be installed on virtually any hardware platform to share data over a network. TrueNAS is the simplest way to create a centralized and easily accessible place for your data.
An operating system for personal and small business use that brings enterprise-class features letting you configure your computer systems to maximize performance and capacity using any combination of applications, VMs, storage devices, and hardware.
Rockstor is a free and open source NAS (Network Attached Storage) operating system. It’s a software solution and can be installed on commodity hardware or a hypervisor satisfying minimum system requirements.
FuguHub lets you set up and operate your own secure file-sharing site, even if you're not a techie. FuguHub is an easy-to-use server that runs either on your own computer/device or on your own private online cloud/VPS server.
PetaSAN is an open source Scale-Out SAN solution offering massive scalability and performance. PetaSAN uses modern cloud based technologies to provide the elasticity and agility to scale up the storage cluster simply by adding more nodes.