KolibriOS is described as 'Tiny yet incredibly powerful and fast operating system. This power requires only a few megabyte disk space and 8MB of RAM to run. Kolibri features a rich set of applications that include word processor, image viewer, graphical editor, web browser and well over 30' and is a operating system in the file management category. There are more than 50 alternatives to KolibriOS for a variety of platforms, including Linux, Windows, Self-Hosted, Mac and BSD apps. The best KolibriOS alternative is Linux Mint, which is both free and Open Source. Other great apps like KolibriOS are Ubuntu, Debian, Fedora and Arch Linux.
FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. Formerly known as "Flint OS".
Asahi Linux is a project and community with the goal of porting Linux to Apple Silicon Macs, starting with the 2020 M1 Mac Mini, MacBook Air, and MacBook Pro.
The OpenMandriva distribution is a full-featured Linux desktop and server, sponsored by the OpenMandriva Association, and is based on ROSA, a Russian Linux distribution project which forked Mandriva Linux in 2012.
The Temple Operating System (TempleOS) is a free and open source, x86_64, non-preemptive, multi-tasking PC operating system.
Mageia is a fork of Mandriva Linux formed in September 2010 by former employees and contributors to the popular French Linux distribution. Unlike Mandriva, which is a commercial entity, the Mageia project is a community project and a...
Peppermint OS is a user-friendly operating system that prioritizes mobility, efficiency, and ease of use, allowing users to quickly connect, communicate, and complete tasks without the need for extensive setup or customization.
Debian-based Linux OS emphasizing beauty and efficiency. Uses KDE Plasma 5, AppImages, and OpenRC instead of systemd. Integrated with Maui Apps and Liquorix kernel for high responsiveness. Includes Firefox, NX Software Center, comprehensive app suite, and hardware probing.
Bodhi Linux, a lightweight distribution featuring the fast & fully customizable Moksha Desktop (https://alternativeto.net/software/moksha/about/). The 64-bit is built on top of Ubuntu (20.04). The 32-bit Non-PAE architecture has a Ubuntu 18.04 base – Bodhi Linux 6.0.
SliTaz is a free operating system, working completely in RAM and booting from removable media such as a CD-ROM or USB key. SliTaz is distributed as a LiveCD, and weighs less than 40MB. The system is quick and responsive, clean and robust.
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Slitaz is incredibly fast, even on hardware from 2004. It also has a decent software library, so you can set it up for casual internet browsing and document editing without a hassle.