How to Increase Ram to be Used by In IntelliJ

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You can increase IntelliJ’s memory allocation by editing the VM options:

Quick method:

1. Help → Change Memory Settings — lets you adjust the heap size directly from the IDE

Manual method:

Edit the VM options file:

1. Help → Edit Custom VM Options (creates the file if it doesn’t exist)
2. Modify these lines:

-Xms512m
-Xmx4096m

• -Xms — initial heap size
• -Xmx — maximum heap size (this is the main one to increase)

File locations (if editing manually):

• Linux: ~/.config/JetBrains/IntelliJIdea2024.x/idea64.vmoptions
• Windows: %APPDATA%\JetBrains\IntelliJIdea2024.x\idea64.vmoptions

Restart IntelliJ after making changes. You can verify the new settings via Help → About — it shows current heap usage and max.