IntelliJ Platform Plugin SDK Help

Internal Actions - UI Inspector

The UI Inspector is a tool to interrogate elements of the IntelliJ IDEA UI to get an internal description of each element. UI elements can be inspected interactively by clicking on the element while the UI Inspector is enabled.

Enabling the UI Inspector

Before using the UI Inspector, it must be enabled by selecting the menu item Tools | Internal Actions | UI | UI Inspector. The enabled state of the UI Inspector is modal; it remains enabled until it is disabled by selecting the UI Inspector menu item again.

Using the UI Inspector

While enabled, centering the cursor on a UI element and pressing Ctrl/Cmd+Alt when clicking the mouse reveals the properties of the Swing component.

For example, to get information about the Build Project button's icon (hammer) on the toolbar (highlighted in green), put the mouse cursor on the icon and press Ctrl/Cmd+Alt while clicking the mouse.

The UI Inspector displays the icon details:

Internal Icon Info

Additional Properties

added-at Property

Sometimes, inspecting complex component's properties is not enough to understand how the component was created and configured. UI Inspector gives the possibility of finding the code where the selected component was added, which makes it much easier to understand which APIs can be used to build custom components with similar complexity. To find the place were component was added, select the added-at property to show the stacktrace:

added-at Stacktrace

Specific Component Properties

Various components used in the IntelliJ Platform expose additional properties. These can be useful to locate the underlying implementation, related Action, etc.





Action Button

Menu Item

Action - AnAction implementation

Action ID - Action id

Action Plugin ID - contributing plugin


Action Toolbar

Toolbar Group - Action Group ID

All Groups - contained Action Group IDs


Modal Dialog

dialogWrapperClass - DialogWrapper implementation


Editor Gutter Icon

gutter renderer - GutterMark implementation


Popup Menu in Editor

intention action/quick fix - IntentionAction/QuickFix implementation



treeModelClass - javax.swing.tree.TreeModel implementation

Custom Swing components can also provide additional properties via UiInspectorContextProvider (2020.1 and later).

Last modified: 24 November 2022