EulerOS

openEuler
DeveloperHuawei Technologies, OpenAtom Foundation (openEuler)
OS familyLinux (Unix-like), Unix (Compliant), HarmonyOS, OpenHarmony (openEuler Embedded (multi-kernel))
Working stateActive
Source modelOpen-source
Initial releaseDecember 31, 2019 (2019-12-31) (EulerOS)
Latest release25.09 (September 2025)
Repositoryatomgit.com/openeuler
Marketing targetServers, Cloud computing, Personal computers, Embedded devices, Edge computing
Supported platformsAArch64 (Kunpeng), x86-64, 32-bit ARM, IA-32, RISC-V, and LoongArch
Kernel typeMonolithic (Linux), multi-kernel (openEuler) with UniProton Microkernel RTOS
UserlandGNU with UKUI, GNOME, Deepin, Kiran-desktop, and Xfce, POSIX, OpenHarmony, HarmonyOS (shared apps
Influenced byCentOS, HarmonyOS, OpenHarmony, LiteOS
LicenseApache license
Official websitedeveloper.huaweicloud.com/ict/en/site-euleros/euleros

EulerOS is a commercial Linux distribution developed by Huawei based on Red Hat Enterprise Linux to provide an operating system for server and cloud environments. Its open-source community version is known as openEuler; the source code of openEuler was released by Huawei at Gitee in January 2020. openEuler became an open-source project operated by OpenAtom Foundation after Huawei donated the source code of openEuler to the foundation on November 9, 2021.

A new programming language for EulerOS and HarmonyOS was announced in September 2021.

On March 27, 2020, openEuler 20.03 LTS version was released in the open source repo as the first Long Term Support (LTS) edition.

openEuler 21.09 version launched with new file system called EulerFS, also a kernel upgrade that is organized similar to classic HarmonyOS and OpenHarmony multi-kernel architecture that carries both RTOS kernel and Linux kernel on October 1, 2021. Also, the operating system supports, UniProton RTOS kernel and kubeOS containerised OS.

EulerOS includes Apache HTTP Server which is known as Apache, as part of its supported tools on the platform.

Huawei announced at Operating System Conference & openEuler Summit 2025 on November 14, 2025, a major milestone for openEuler open source operating system, aimed to exceed 16 million installations by the end of 2025.