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I downloaded Appcleaner from App store and want to clean up to get some more space.

I have two versions of Xcode; 7.3 and 8.0. So there's no problem with two executable files but I'm wondering what that 'Application support' files are for. The bigger one takes up almost 19 gigabytes..

May i delete that one?


2 Answers 2

  • Cache: Sure. Haven't noticed anything bad. (You can do this yourself, as well – just trash everything in ~/Library/Caches.)
  • Application Support: Do not do this without knowing what's in there! Apps often use this to store configuration – for example:
    • Xcode puts color themes and key bindings there.
    • The Dock puts your spaces configuration there.
    • GIMP uses it to hold all sorts of things like gradients and palette images.
    • Steam uses it to store your entire game library. (If it's taking up way too much space, try uninstalling some games.) Not sure if progress is there too, but it seems likely.

Deleting Application Support won't break the app (it'll just create it again the next time it starts), but you might lose configuration and other data, like key bindings for Xcode. You also might want to make sure the app is closed before you take its folders out from under it. (:


I am using AppCleaner and I searched for this question specifically because I downloaded Xcode 9 with 8.3 still installed on my mac. Long story short; you can safely delete Application Support if you do not have any issue with losing any or all configurations previously set on the app. I did it for a bunch of apps like Spotify to free up space and as far as I can tell everything works smoothly.

  • 1
    Um...many apps stick configuration files in there. Whether you can delete it safely depends on the app—look before you trash!
    – SilverWolf
    Oct 17, 2017 at 15:10
  • Yes I agree. I deleted mine after much internal deliberation. Due to a few reasons I did not install Xcode from the app store and ended up with dual installs. As a result I had multiple configurations in that folder which were actually obvious because I had renamed my first Xcode to 8.33. I guess my answer actually applies to me an anyone in a similar scenario to mine. FYI the folder was 17.7gb. I think this was a fair decision imo. If I notice any glitches while using Xcode I will be sure to update but my guess is that the app is reset to default configuration. I am editing my answer thanks! Oct 17, 2017 at 15:34
  • Ouch, that's huge! Yeah, it shouldn't break anything. (BTW, mine's only 49 KB -- I wonder what was in yours.)
    – SilverWolf
    Oct 17, 2017 at 15:38

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