GIF2SWF Converter is a simple utility to convert animated GIF files into Macromedia Flash Movies (SWF). The single GIF file can be easily converted as well as whole folder, including one-level subfolders. Command line conversion is supported - it would be great for the Web servers. The output SWF movie can be linked to the specified URL.
View/convert/organize between 4276 different formats. Free download of Konvertor 5.03.001
Utility for tracing a bitmap, which means, transforming a bitmap into a smooth. Free download of Potrace for Mac OS X 1.12
Easily batch convert DGN to DWG and DXF without need of AutoCAD or Miscrostation. Free download of AutoDWG DGN to DWG Converter Pro 2011.9 2.081
3D modeling, animation, rendering, and also features a game engine. Free download of Blender - 64 bit 2.74