Top Alternatives to CentOS

Ubuntu is an open source operating system based on Linus Kernel developed and maintained by Canonical. It is one of most popular Linux operating system used today.

Debian is the open source and free Linux based operating system.

Arch Linux is an open source operating system based on Linux kernel.

Fedora is an operating system based on the Linux kernel.

openSUSE formerly SUSE Linux and SuSE Linux Professional, is a Linux-based project and distribution sponsored by SUSE Linux GmbH and other companies.

Windows 10 is a personal computer operating system developed and released by Microsoft as part of the Windows NT family of operating systems.

elementary OS is a Linux distribution based on Ubuntu.

ReactOS is a free and open-source operating system for x86/x64 personal computers intended to be binary-compatible with computer programs and devices.

FreeBSD is an operating system for a variety of platforms which focuses on features, speed, and stability.

Gentoo Linux is an computer operating system distribution

Red Hat Linux, assembled by the company Red Hat, was a widely used Linux distribution until its discontinuation in 2004.

TrueOS (PC-BSD or PCBSD), is a Unix-like, desktop-oriented operating system built upon the most recent releases of FreeBSD-CURRENT.

OpenBSD is a free and open source Unix-like computer operating system descended from Berkeley Software Distribution (BSD).

SliTaz GNU/Linux is a lightweight GNU/Linux distribution, community-based, suitable for use on older hardware and as a Live CD or Live USB.

Qubes OS is a security-focused desktop operating system that aims to provide security through isolation.

CoreOS is an open-source lightweight operating system based on the Linux kernel and designed for providing infrastructure to clustered deployments, while focusing on automation, ease.

Windows Server 2012, codenamed "Windows Server 8" is the sixth release of Windows Server.

Alpine Linux is a Linux distribution based on musl and BusyBox, primarily designed for "power users who appreciate security, simplicity and resource efficiency".