Always download directly from the Official Android Developers Website.

Sites claiming to offer a "crack" or "activation key" for free software are almost always hosting . Since the software is already free, these sites use the "crack" label as a bait-and-switch tactic to get users to download: Keyloggers: That steal your passwords and sensitive data. Trojans: That give hackers remote access to your machine.

If you specifically need version 2021.3.1 (Dolphin) for a legacy project, you can find it in the official Android Studio Download Archives . This ensures you get a clean, official build.