Today I ran a Xcode project on a react-native project, and it add up to 5.43 GB for only one simple project, is that normal? So if I have 10 projects it will add up to 50 GB??!!?

Screenshot of directory size

In Android, it eats up 12 GB for the SDK but it does not consume anymore space, but Xcode eats up 5 gigs a project... Is that normal? I tried to create new project and it added up to 9 GB.

I deleted this project and it added up again. Is there any solution for this?

I ran on Xcode 12, MacOS 11.5.1, MacBook Pro M1.

1 Answer 1


The "Project Build Data and Indexes" entry you see there is combined for all your projects. As you create new projects, I wouldn't expect each of them to increase the amount of disk space used by the same amount as the first - i.e. various caches, pre-built data and indices are only needed once (or once per architecture, once per device model, once per iOS version or similar).

Whether or not 5 GB of data for a single Xcode project is "normal" is impossible to say. Some projects take up 50 kB of disk space, some takes up 50 GB - it really depends on the specific project.

  • omg, this project is default project when i create by npx react-native init MyProject, and eat up 5bg, maybe 256gb is not enough for dev, but i have one question: if i move project to extenal ssd , how can i move all data to this ssd? Commented Aug 14, 2021 at 7:47
  • 2
    React Native is known for having these huge project sizes as it draws in lots and lots of dependencies. You’ll have a different experience with projects not based on React Native.
    – jksoegaard
    Commented Aug 14, 2021 at 12:06
  • You can move the project itself simply by dragging the folder to the other SSD in Finder
    – jksoegaard
    Commented Aug 14, 2021 at 12:07

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