A Debian-based Linux® operating system built with small businesses in mind. It provides a stable, secure, privacy-focused, and familiar desktop experience without unnecessary complexity, advertising, or mandatory online accounts.

Proton OS is designed to give businesses greater control over their computers while reducing dependence on proprietary operating systems and unnecessary data collection.

Key principles include:

• Privacy: No unnecessary telemetry or advertising-driven features.
• Security: Automatic security updates and security-focused enabled by defaults.
• Stability: Built on the proven Debian Linux foundation.
• Simplicity: A familiar desktop without unnecessary software.
• Business Ready: Designed for office workstations, shared computers, reception systems, and compatible older hardware.
• User Ownership: Your business owns the computer and should control the operating system.

Features

  • Rock-Solid Debian 13 Base: Built on Debian 13 (Trixie) for business-grade stability, long-term support, and zero update headaches.
  • Hardened Security by Default: Pre-configured firewall (Enabled out of the Box), AppArmor enforcement, automatic security updates, and SSH disabled out of the box.
  • Familiar, Accessible Desktop: Designed with a familiar desktop layout to minimize the learning curve for everyday users and small teams.
  • Ready Out of the Box: Preloaded with productivity software, office tools, PDF utilities, and secure web browsers for instant day-one work. No License Purchase Needed.
  • Pre-installed WinBoat Integration: Run legacy Windows applications seamlessly on your desktop, pre-configured and ready to use out of the box with zero complex setup.
  • Built-in Web Apps: Easily access essential web-based business applications directly from the desktop, providing a familiar and streamlined workflow without unnecessary software.

Project Samples

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License

GNU General Public License version 3.0 (GPLv3)

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User Reviews

  • Best Linux Distro out there! :D
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Additional Project Details

Operating Systems

Linux

Intended Audience

End Users/Desktop, Healthcare Industry, Legal Industry, Non-Profit Organizations, Security Professionals, System Administrators

User Interface

KDE

Registered

2026-08-12