You can adjust the maximum size of the cache so it doesn't grow so big, and the next time you start spotify it will shrink the cache down to the size you specify.
Close spotify, then open for editing the prefs file which is at:
Windows1: %APPDATA%\Roaming\Spotify\prefs
Linux: $HOME/.cache/spotify/prefs
Add or modify the line starting with storage.size
to the number of megabytes you want the cache to use. For example:
storage.size=512
To limit the cache to 512 MB.
Restart spotify and the new limit will take effect (you'll see the folder shrink down to the specified size if it is already above it).
1 On Windows, the %APPDATA%
folder is usually something like C:\Users\<username>\AppData
.
Are you referring to the web player or the standalone one? – Alex – 2013-09-22T13:27:42.947
@Alex Standalone Desktop Application. – Simon – 2013-09-22T13:28:52.370