How do I only download Android SDK?

You will need to download the Android SDK without Android Studio bundled. Go to Android SDK and navigate to the SDK Tools Only section. Copy the URL for the download that’s appropriate for your build machine OS. Unzip and place the contents within your home directory.

How do I download Android SDK only for Windows?

Windows installer: Navigate to the “Get just the command line tools” section of the android downloads page, and download the tools for your system.