Define a fully-connected world
With a full-scenario, distributed architecture and an ecosystem of various devices, HarmonyOS offers a whole new experience for hardware, interaction, and services. Join us in building a fully-connected world.
Find out about how to develop HarmonyOS applications.
Learn HarmonyOS features and how to use them.
Start your development with simple and real code.
Write your code easily with step-by-step tutorials.
Get HarmonyOS code and directory structure.
Learn HarmonyOS privacy policies and security mechanisms.
Learn how to develop typical HarmonyOS devices.
Certify your devices and join the HarmonyOS ecosystem.