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Free ClearOS Alternatives

The best free alternative to ClearOS is OpenMediaVault, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to ClearOS and 18 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to ClearOS are pfSense, Cloudron, NethServer and Univention Corporate Server.

ClearOS alternatives are mainly Firewalls but may also be Operating Systems or VPN Services. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of ClearOS.
This page was last updated May 11, 2022
  • FreeOpen Source
  • Linux

ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose...

Learn more about ClearOS

  1. 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.

    OpenMediaVault vs ClearOS opinions
    This alternative is disputed. OpenMediaVault is still a legitimate alternative to ClearOS, but it might have issues that some users think are important.

    One is for gateway servers and the other for home servers, different practical uses.

    Negative comment almost 7 years ago
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  2. pfSense is a free, open source customized distribution of FreeBSD tailored for use as a firewall, and router.

  3. Cloudron is a complete solution for managing apps & users on your own server. Easily deploy production ready apps from the app library and keep them automatically up-to-date. It even comes with a built-in email server and web clients!.

  4. NethServer

    • FreeOpen Source
    • Linux
    • Self-Hosted
    • CentOS

    NethServer is a CentOS-based Linux distribution for servers. The product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.

    NethServer vs ClearOS opinions
    pros, cons and recent comments

    NethServer is rocksolid and has a great and welcoming communtiy. besides the official modules there are MANY community maintained modules that gives an unmatched functionality for NethServer

    Positive comment almost 4 years ago
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  5. Univention Corporate Server is a pre-configured platform to operate and manage server applications and complete IT infrastructures free of charge.

  6. Sophos XG Firewall

    • Free PersonalProprietary
    • Self-Hosted

    A modern replacement for Sophos UTM based on Sophos, Cyberoam and Astaro technology combined.

  7. The Amahi Home Server is designed for home and small office environments where the technical support staff do not want the job!

  8. Deta Space

    • FreeProprietary
    • Online
    • Deta

    Where web apps are yours.

  9. CrossBrowdy

    • FreeOpen Source
    • Online

    CrossBrowdy is an open-source and free JavaScript framework that let developers create multimedia apps, game engines, games, emulators and so on.

  10. Smoothwall

    • FreeOpen Source
    • Linux

    The SmoothWall Open Source Project was set up to develop and maintain SmoothWall Express - a Free firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface.


    The site says the last release was October 2014.

Showing 10 of 18 alternatives