How to show tool window names (captions) instead of icons-only in IntelliJ IDE

Question

How to show tool window names (captions) instead of icons-only in IntelliJ IDE?

Answer

To get vertical tool window names

Install the Extended Tool Windows UI plugin available since 2026.3 EAP 3:

1. Go to IDE Settings > Plugins.
2. Type "Extended tool windows UI" in the search field.
3. Press "Install".
4. Restart the IDE.

NOTE: plugin will also bring back top and bottom tool window bars, and Top Right and Top Left tool window placement.

To turn on horizontal tool window names

Go to "Settings | Appearance & Behavior | Appearance | Tool windows" and turn on "Show tool window names"

Alternatively, right-click the tool window bar and select Show Tool Window Names.