Create HarmonyOS applications
Get started
Get a quick overview of HarmonyOS and learn how to develop applications, build an environment, and create and run projects.
Guides

Find out about how to develop HarmonyOS applications.
References

Learn HarmonyOS features and how to use them.
Samples (coming soon)

Start your development with simple and real code.

Codelabs (coming soon)

Write your code easily with step-by-step tutorials.
Develop HarmonyOS devices
Source code

Get HarmonyOS code and directory structure.
Privacy and security

Learn HarmonyOS privacy policies and security mechanisms.
Typical samples

Learn how to develop typical HarmonyOS devices.
Certification

Certify your devices and join the HarmonyOS ecosystem.
Get started
Learn about HarmonyOS and how to build an environment, and create and run projects.
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