Looking for the best free NAS software in 2025? You’re in the right place! A NAS (Network Attached Storage) system helps you store and share files across your network. It turns an old computer or a dedicated server into a personal cloud.
There are many options, but not all are the same. Some focus on ease of use, others on security and advanced features. Below, we list the top 10 free NAS software solutions for 2025.
1. TrueNAS Core
TrueNAS Core (formerly FreeNAS) is one of the most popular NAS solutions. It’s free, open-source, and packed with features.
- Easy to set up
- Based on FreeBSD
- Great ZFS file system support
- Strong security features
2. OpenMediaVault
This is a great choice for beginners. It’s built on Debian Linux and has a simple web-based interface.
- Easy installation and configuration
- Plugin support for extra features
- Supports RAID management
- Great for home users
3. XigmaNAS
XigmaNAS is another FreeBSD-based NAS solution. It’s simple yet powerful.
- Supports ZFS and UFS file systems
- Runs on almost any hardware
- Web-based management
- Secure and reliable
4. Rockstor
If you love Linux, Rockstor is a great NAS choice. It’s based on CentOS and Btrfs.
- Easy-to-use web UI
- Supports snapshots and replication
- Great for DIY NAS builders
- Lightweight and fast
5. PetaSAN
PetaSAN is built for scalability. It’s great for businesses needing a high-performance NAS system.
- Uses Ceph for distributed storage
- Highly scalable
- Enterprise-grade features
- Ideal for large storage needs
6. EasyNAS
The name says it all. EasyNAS is simple, lightweight, and works right out of the box.
- Minimal configuration needed
- Great for home users
- Built on OpenSUSE
- No complex setup required
7. UnRAID (Free Version)
UnRAID has a free version with limited features. It’s great for beginners and media servers.
- User-friendly dashboard
- Supports Docker and VMs
- Great for media streaming
- Basic RAID support
8. Openfiler
Openfiler is an older but still reliable NAS solution. It offers good performance and network sharing features.
- Supports iSCSI and NFS
- Ideal for businesses
- Advanced storage management
- Free and open-source
9. NAS4Free (Legacy Users)
NAS4Free was the old version of XigmaNAS. It still works well for those who prefer a classic setup.
- Based on FreeBSD
- Lightweight and stable
- Minimal system requirements
- Secure and customizable
10. Ubuntu Server with SAMBA
If you love Linux, you can turn Ubuntu Server into a NAS with SAMBA.
- Highly customizable
- Great for advanced users
- Supports Windows, macOS, and Linux
- Best for tech-savvy users
Which NAS Software is Right for You?
Choosing the right NAS software depends on your needs. If you want something simple, go with OpenMediaVault or EasyNAS. Need advanced features? TrueNAS Core or PetaSAN might be best.
Whatever you choose, a NAS system helps you securely store and access your data from anywhere. Best of all, these solutions are FREE!
