If you have a choice in your OS, we strongly recommended ditching MacOS or Windows and moving to a Linux driven system. Yet, even with Linux you have choices to make. Not sure which Linux distribution is right you? Check out Compute Freely to learn more about them.
Use Instead Of: Windows, MacOS.
Desktop Operating Systems
Beginner Friendly Operating Systems
Fedora Workstation is a reliable, user-friendly, and powerful operating system for your laptop or desktop computer. It supports a wide range of developers, from hobbyists and students to professionals in corporate environments. Companies all over the world trust Red Hat Inc. because of their transparency throughout the whole development process.
Ubuntu is a Linux distribution developed by Canonical Ltd. Ubuntu is a user friendly and stable operating system with many features and programs included to make the move to Linux easier for the first time or novice user.
Advanced Operating Systems
A simple, lightweight Linux distribution. It is composed predominantly of free and open-source software, and supports community involvement.
Live Operating Systems
Tails is a portable OS that you leave installed on a thumbdrive and use when you have access to a computer. This is a pretty secure option and it uses Tor as a default connection to the web, but is not realistic for most users. It is the most secure of the bunch, and is a great option for those who need the utmost security.
If you don’t have a choice and are using Mac, you can follow this privacy guide to making MacOS as secure as you can.
Mobile Operating Systems
If you're going to stick with a mainstream OS, we recommend using Apple's iOS over Android. If you are going to use Android, and are comfortable installing your own OS on your device, we recommend using one of the alternative OSes below.
GrapheneOS is a free and open-source security and privacy focused mobile operating system built on top of the Android Open Source Project, only supporting devices offering strong hardware security.
A free and open-source operating system for smartphones and tablet computers, based on the Android mobile platform.
Ubuntu Touch is a free and open-source operating system for smartphones and tablets. It's an alternative to the current popular mobile operating systems on the market.