Question delete the cache in \USER\AppData\Local\Unity\cache

I really need to temporarily free up space on my system drive.
Would it be safe to delete the cache in this folder? C:\Users\USER\AppData\Local\Unity\cache
There is 2 fodlers
npm
packages

Thank you!

 

You should be able to safely delete the folders but if any of the packages in there are necessary they will just be cached once again. Instead if you've used the asset store I recommend copying the packages from the location below to a different drive and when you need them you can manually drag and drop them into Unity:

C:\Users\USER\AppData\Roaming\Unity\Asset Store-5.x

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Indeed, though I regularly delete some of the larger packages from at least the ‘packages’ folder, as Unity will simply unpack them again from the ‘npm’ folder if they are needed again. Though sometimes I just delete both folders, especially as with working with Unity for so many years and across so many editor versions you can easily build up a large amount of packages that are never used as they get superseded.

Alternatively you could try my AssetStoreOrganizer editor script (GitHub) that provides an interface that allows you to back up and restore asset store packages to a different folder (on a different drive ). I use it to move packages in and out of the Unity folder as needed so I only store about 1Gb on my main drive and the 20Gb plus of other assets elsewhere.

In more modern versions of the editor you can set a custom path for where packages and asset store packages are saved, though it’s unclear if that works for previous editor versions.

 

Thanks for nice idea!

 

Alternatively, if you have another drive, you can simply create a SymLink so that the cache folder is actually on a different drive.

You can either use command line or a tool such as https://github.com/amd989/Symlinker

Newer versions of Unity let you define your cache folder locations in your Edit>Preferences