IntelliJ IDEA 13.1.0 Web Help

In this section:

Increasing productivity

To increase productivity of IntelliJ IDEA, you can change settings that reside in the following locations (depending on your operating system):

  • On Windows systems:
    <IntelliJ IDEA installation folder>/bin/idea.exe.vmoptions
    <IntelliJ IDEA installation folder>/bin/idea64.exe.vmoptions
  • On *NIX systems:
    <IntelliJ IDEA installation folder>/bin/idea.vmoptions
    <IntelliJ IDEA installation folder>/bin/idea64.vmoptions
  • On OS X:

    Since version 12:
    The file /Applications/IntelliJ should be copied to


Example. increasing heap size

For example, to increase IntelliJ IDEA heap size, you should copy the original .vmoptions file from /Applications/IntelliJ to ~/Library/Preferences/IntelliJIdeaXX/idea.vmoptions, then modify the -Xmx setting.

For the older versions, the settings are stored in:


Managing case of unicode literals


IntelliJ IDEA allows defining whether non-ascii characters should use literals like '\u00AB' or '\00ab'.

This behavior is controlled by the system property idea.native2ascii.lowercase. By default, upper case characters are used.

If it is desirable to use lower case characters, do the following (depending on your platform)

  • 12.0+On Windows and *NIX: add the line

    to the bin/ file, located under the product installation.

  • On OS X:

    Copy the file /Applications/IntelliJ to ~/Library/Preferences/IntelliJIdeaXX/, open it for editing, and add the line


    It is essential to create a copy, since the settings are replaced rather than added.

    For the older versions of IntelliJ IDEA, open for editing the file /Applications/IntelliJ, and add the following code:


    to the section <key>Properties</key> <dict> ... <dict>

See Also


External Links:

Web Resources: