3D & CAD

Can I delete Unreal Engine from my Mac?

Yes, you can delete it

Yes, you can delete Unreal Engine from your Mac. Deleting the app itself does not remove your personal documents or associated data folders.

Last updated: October 31, 20262 min read

See how much space Unreal Engine really takes before you decide

Unreal Engine data usually takes 5 GB – 200 GB on a Mac. The free scan shows the exact size on your Mac before you change anything.

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Application: Unreal Engine
Typical data size: 5 GB – 200 GB
Category: 3D & CAD
File Location: ~/Library/Application Support/Epic/UnrealEngine

What happens when you remove Unreal Engine

Specific to Unreal Engine

You lose the engine versions installed via the launcher, which typically occupy 5 GB – 200 GB. Your Epic account remains intact since it handles installation and syncing. Local project folders and asset packs in the VaultCache are not deleted when the app is removed. Only the software binaries are gone, while settings and cached data persist in separate system folders.

Where your Unreal Engine data lives

Unreal Engine keeps none of your own files in its folders; what it stores is rebuilt automatically or comes from your account.

~/Library/Application Support/Epic/UnrealEngine App data · shared derived data cache and engine settings Yes, once the app is gone~/Library/Application Support/Epic/UnrealEngine/Common/DerivedDataCache Cache · shared derived data cache Yes, rebuilt automatically~/Library/Application Support/Epic/EpicGamesLauncher App data · Epic Games Launcher data Only if no other app uses it/Users/Shared/Epic Games Other · engine versions installed by the launcher Yes, once the app is gone/Users/Shared/UnrealEngine/Launcher/VaultCache Other · downloaded asset packs from the launcher library Yes, once the app is gone

Account and sync: Unreal Engine is installed through the Epic Games Launcher with an Epic account.
Your files: Projects are folders you choose; their Intermediate and Saved folders regenerate.

Risks of deleting Unreal Engine

The primary risk involves losing unsaved local work if project folders are not backed up. Since the shared derived data cache in Application Support rebuilds automatically upon opening projects, deleting it now saves space but increases future load times. Keep the Epic Games Launcher data if you use other apps from the same company. Ensure all necessary project source files are secured before proceeding.

Uninstall old engine versions from the Epic Games LauncherBack up project Content, Config, and Source foldersClose the editor and delete project Intermediate and DerivedDataCache folders

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How to delete Unreal Engine completely

Quit Unreal Engine, move it to the Trash, then remove what it left in ~/Library/Application Support/Epic/UnrealEngine. The full step-by-step guide:

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Frequently asked questions

Will deleting Unreal Engine delete my files?

No. Removing the app doesn't touch documents you saved in other folders. Only the app and, if you remove them, its own support files are deleted.

Will my downloaded assets disappear if I delete Unreal Engine?

No, downloaded asset packs remain stored in the VaultCache folder.

Does removing the app clear the large DerivedDataCache folder?

No, this folder stays on your Mac and must be removed separately.