MapMaker
MapMaker is a Chip's Challenge program by Ruben Spaans. It generates a full map of a CC level that the user specifies, and also reveals invisible walls, the state of blue walls, items hidden under blocks, and the paths of specific monsters such as fireballs, pink balls, and gliders, drawn with lines corresponding to their colors.
MapMaker is one of the first programs made for Chip's Challenge. Programs that may have been around longer are ChipEdit by John Elion and T-Chip, also by Ruben Spaans.
MapMaker is not used very often today, due to AVIs and ChipCap, Tile World's TWS function, and the GliderBot discord bot. It is a 16-bit program, meaning that it cannot run on 64-bit versions of Windows.