Drag the Android Studio icon into your Applications folder from the .dmg file.
Run the .exe or .tar.gz and follow the Setup Wizard to download required SDK components. android tool download
If you only need to run commands like adb (Android Debug Bridge) or fastboot to unlock bootloaders or sideload apps, you don't need the full IDE. Drag the Android Studio icon into your Applications
Grab the standalone SDK Platform-Tools for your OS: Download for Windows Download for Mac android tool download