Wilbur is described as 'For lack of a better name, this software is called Wilbur. It allows an individual to play with terrain data (height fields). It can import data from and export data to many popular file formats. In addition, it allows the data to be modified with a number of image processing' and is an app. There are 1 alternatives to Wilbur for Mac, Windows and Linux. The best Wilbur alternative is G.Projector — Global Map Projector, which is free.
G.Projector is a tool for exploring map projections. It takes an input map image, typically in Equirectangular form (also called Cylindrical Equidistant or Plate Carré) and transforms it to one of over 140 other projections.