SQLDeveloper. Change the IDE language and font size

First you have to shutdown your SQLDEveloper.

IDE language

Edit the file sqldeveloper.conf for changing the IDE language adding the following lines:

# Tomeu Mir – forcing English UI language
AddVMOption -Duser.language=en
AddVMOption -Duser.country=UK

The location of the sqldeveloper.conf is at /Applications/SQLDeveloper.app/Contents/Resources/sqldeveloper/sqldeveloper/bin

IDE Font Size

Edit the file ide.properties for setting the desired font size of the IDE. Comment any line like Ide.FontSize.* and add the following one:


For finding the location of the ide.property file you can do the following from a shell command and choose the one corresponding to the highest edition.

$ cd ~/.sqldeveloper/
.sqldeveloper$  find . -name “ide.properties”

Now you can restart your SQLDeveloper and enjoy working again.

1 thought on “SQLDeveloper. Change the IDE language and font size

  1. rafael giusti

    Many Thanks!! After a LOT of research, this helped me adjusting the fontSize on MacOS for a non-retina display showing blurry fonts on IDE components.


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