Scratch will run in most current web browsers on desktops, laptops and tablets. You can view projects on mobile phones, but currently we do not recommend creating or editing projects on phones. Below is the list of officially supported browsers and recommended operating systems.
Supported Browsers:
Desktop
Chrome (63+)
Edge (15+)
Firefox (57+)
Safari (11+)
Internet Explorer is NOT supported.
Tablet
Mobile Chrome (63+)
Mobile Safari (11+)
Note:
If your computer doesn’t meet these requirements, you can try the Scratch app editor.
If you encounter a WebGL error, try a different browser.
Recommended Operating Systems:
Windows 10 version 1709 or higher
MacOS 10.13 or higher
iOS version 10 or higher (Tablets only)
Android 7.0 or higher (Tablets only)
On tablets, there is currently not a way to use "key pressed" blocks or right-click context menus.