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- This article or section documents the current version of Scratch (version 3.0). For this article in Scratch 2.0, see Offline Editor (2.0). For this article in Scratch 1.4, see Scratch 1.4.
The Scratch app, otherwise known as the Scratch offline editor, is a version of Scratch 3.0 that can be downloaded and installed on a computer, as opposed to being used in a web browser like the online editor. This is useful for those who wish to use Scratch without an internet connection or for class teachers who wish for their students not to participate with the online community. Scratchers also use it for creating a new version of their game without other users noticing.
- Main article: What are the system requirements for Scratch?
For the Scratch app to run properly, the following minimum system requirements are needed:
- Windows 10 version 14316.0 with x64 or x86 architecture or later or macOS (OS X) 10.10 (Yosemite) or later  with a 64-bit processor or Android tablets/Chromebooks version 6.0 or later, though users have reported successfully running the editor on Windows 7
- Approximately 400 MB of free hard drive space
Downloading and Installation
Scratch Desktop can be downloaded from the Scratch website. An installer is provided which requires no interaction.
The app saves all projects in .sb3 format.
If installed from an app store, it updates automatically when a new version is available. The direct download version intentionally does not have this feature.
Cloud variables are not available in the offline editor, presumably because users cannot log in.
The backpack is also not included in the offline editor because users cannot log in.
- See also: Project Sharing
Uploading projects might be supported in a future version, and will be a similar process as to Scratch 1.4 and Scratch 2.0; however, it will not allow project instructions, notes, or tag inputs directly from the upload. There will be a 50 MB project size limit like Scratch 2.0, though the majority of projects do not reach that file size. However, users can bypass this limit by uploading a .sb3 file onto a project on the Scratch website. The projects are uploaded to the Scratch website, but they are not shared unless the user shares them.
- scratch:download, "Sharing directly to online community from the Scratch app for Windows is not currently supported."