OpenHarmony

OpenHarmony
OpenHarmony 3.2 default embedded development environment GUI
Developer	OpenAtom
Written in	C, C++, ArkTS, JS, and others
OS family	Distributed Operating System
Working state	Current
Source model	Free and open source
Initial release	September 10, 2020 (2020-09-10)
Latest release	6.1 / March 9, 2026 (2026-03-09)
Repository	gitcode.com/openharmony
Marketing target	Embedded systems, Smartphones, Personal computers, Aerospace
Available in	Multilingual
Update method	Over-the-air
Package manager	.app
Supported platforms	ARM, RISC-V, IA-32, x86-64, LoongArch
Kernel type	Kernel-agnostic. Usually liteos_a (micro) or liteos_m (monolithic). Some userspace components cross-compile via a subset of pthreads and "CMSIS-RTOS". APIs.
Userland	System Service Layer (OSKA)
Influenced by	LiteOS
Default user interface	HarmonyOS Design (Design System) for OpenHarmony modified (multi-touch, GUI)
License	Apache license
Preceded by	LiteOS
Official website	openharmony.cn
Support status
Supported

OpenHarmony (OHOS, OH) is a family of open-source distributed operating systems sharing some principles from Huawei LiteOS lineage. Huawei donated the pure HarmonyOS L0-L2 single framework branch, non-AOSP source code, to the OpenAtom Foundation. Similar to HarmonyOS, the open-source distributed operating system is designed with a layered architecture, consisting of four layers from the bottom to the top: the kernel layer, system service layer, framework layer, and application layer. It is also an extensive collection of free software, which can be used as an operating system or in parts with other operating systems via Kernel Abstraction Layer subsystems.