Lazarus component, to arrange components in a grid: rows, columns, width in columns, height in rows. It looks a bit more compatible to Delphi's TGridPanel, though not completely (e.g. some properties are named differently, the control collection is TControlItem instead of TGridPanelControl, and the later misses some properties as well).
How to use: Youtube video.
Author: Dirk Graf, home page.
Currently there is only 7z archive to download.