This document is out of date, please refer to the new version: http://intellij-support.jetbrains.com/entries/23358108.
On Windows and Linux platforms IntelliJ IDEA stores its caches, configuration and plugins in the user's home directory (profile directory).
On Windows platform it's usually <SYSTEM DRIVE>\Documents and Settings\<USER ACCOUNT NAME>\.IntelliJIdeaXX.
On Windows Vista, Windows 7 and later Windows versions the profile directory is <SYSTEM DRIVE>\Users\<USER ACCOUNT NAME>.
For Unix/Linux the home directory is ~/.IntelliJIdeaXX (~ is usually an alias for /home/<USER NAME>)
|XX represents product version and can be (70, 80, 90, 10, 11, etc.).|
|For IntelliJ IDEA Community the folder name is .IdeaICXX.|
Under the .IntelliJIdeaXX directory the following subdirectories can be found:
On Mac OS X IDEA uses the following directories:
For other products based on IntelliJ platform look for the product name instead of IntelliJIdea:
In some environments user's home directory is located on the mapped network drive which is unacceptable for IntelliJ IDEA. You'll notice the huge performance degradation. You may also want to move system directory to the faster or larger drive partition.
Locations of these directories can be modified in IDEA_HOME\bin\idea.properties file.
You will need to adjust the following parameters:
Note for Mac OS X users: most likely you will not need to change the defaults, but if for some reason you want to do it, you can find the related settings in the Info.plist file located in IntelliJ IDEA Application directory.