SME Server Alternatives & Competitors

Univention Corporate Server UCS with Active Directory functions and App Center is the cost-efficient and popular successor to Microsoft's server solutions.

Key Univention Corporate Server features:

Open Source Scalability Integrated Management Extensive App Ecosystem

Linux directory, domain, mail, gateway and infrastructure server for SMBs.

Key Zentyal features:

Ease of Use Integrated Services Active Directory Integration Open Source

BunnyCDN is a simple and powerful CDN, offering lightning fast performance for a fraction of the cost with free SSL, Brotli, HTTP/2 and 100% Pay As You Go pricing.

Key Bunny.net features:

Global Network Affordable Pricing Ease of Use Security Features

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A very good alternative for Windows Server, for free.

Key ClearOS features:

User-Friendly Interface Integrated Marketplace Community Support Versatile Deployment Options

Secure, fast and economically scalable, Ubuntu helps you make the most of your infrastructure. Whether you want to deploy a cloud or a web farm, Ubuntu Server supports the most popular hardware and software.

Key Ubuntu Server features:

Open Source Strong Community Support Robust Security Compatibility

OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.

Key OpenMediaVault features:

Open Source User-Friendly Interface Plugin Support Regular Updates

Open Source

NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...

Key NethServer features:

Ease of use Modularity Open Source Comprehensive Features

pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more.

Key pfSense features:

Open Source Comprehensive Feature Set Customizability Excellent Documentation

Open Source

TrueNAS Core (formerly FreeNAS) is a storage operating system strong and robust enough to meet the needs of enterprise level businesses.

Key TrueNAS Core features:

Open Source ZFS File System Enterprise Features Comprehensive Plugin System

Save time and money with 45+ ready-to-use solutions.

Key Turnkey Linux features:

Ease of Use Time Efficiency Security Wide Range of Applications

Open Source

Rockstor is a free and open source NAS (Network Attached Storage) operating system.

Key Rockstor features:

Btrfs File System User-friendly Interface Docker Support Custom Storage Solutions

Increase security, evolve your datacenter, and innovate faster with Microsoft Windows Server, the cloud-ready operating system.

Key Windows Server 2019 features:

Enhanced Security Improved Hybrid Cloud Integration Storage Improvements Container Support

Windows Server Essentials (formerly Windows Small Business Server) is a flexible, affordable, and...

FreeIPA is an integrated security information management solution combining Linux (Fedora), 389...

Key FreeIPA features:

Open Source Integration User-Friendly Interface Strong Security Features

Open Source