---
id: mac-storage-basics.how-do-i-free-space-used-by-unity
url: https://storagestudio.us/faq/mac-storage-basics/how-do-i-free-space-used-by-unity
category: "Mac storage basics"
subcategory: "Programming languages and toolchains"
question: "How do I free space used by Unity on a Mac?"
alt_questions:
  - "unity hub remove editor versions"
  - "unity library folder delete"
  - "unity taking space mac"
  - "old unity editors disk space"
  - "unity project library regenerate"
  - "unity cache 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."
tags: ["unity", "games", "developer"]
related: ["https://storagestudio.us/faq/mac-storage-basics/how-do-i-clean-rust-go-and-other-build-caches", "https://storagestudio.us/faq/mac-storage-basics/can-i-keep-developer-projects-on-an-external-drive"]
applies_to: "all"
last_reviewed: 2026-10-01
---

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

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.