Guide:Supported Platforms and Systems
Mockitt is a browser-based application, which means it can run on all complete desktop operating systems (macOS, Windows, Linux, etc.) as well as Chrome OS.
Mockitt also has desktop clients for macOS and Windows.
If you need a real-time preview on a mobile device, you can download, which supports iOS and Android systems.
Safari 10.1+ (Apple-macOS)
Edge 14+ (Windows)