The Project Explorer is the main part of LabPlot aimed to handle its objects. Objects are organized in a tree-like structure representing the parent-child relations between the different objects. Folders and sub-folders can introduce additional grouping for the different objects.

Project explorer is a dockable window and can be placed at an arbitrary place. The user can determine which columns should be shown by selecting/deselecting the columns of interest in the context menu (right mouse button click on an empty place in the tree-view or its header). Furthermore, the list of shown objects can be reduced by providing a filter in the Search/Filter text field.