Mac storage basics · Programming languages and toolchains

How do I free space used by Unity on a Mac?

Short answer: Uninstall editor versions you don't need from Unity Hub, and delete a closed project's Library folder (Unity rebuilds it). Never delete Assets, Packages or ProjectSettings.

Two things usually take the space:

  • Editor versions — every Unity version you install is a full app. Remove ones no project needs from Unity Hub (its list of installed editors offers an uninstall option).
  • Each project's Library folder — Unity's generated working data. With Unity closed, it can be deleted; Unity rebuilds it the next time the project opens, which takes a while for big projects.

Keep the Assets, Packages and ProjectSettings folders — those are your project.

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