Ecdesign - Ecdesign.
Studio Designer - Studio Designer is totally different from the traditional designing and home decorating programs.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Palette CAD - Palette CAD is one of the easiest 3D design software for those people who want to use a simple to use program for interior designs.
Design Manager - Design Manager is an interior designing software that is designed by the leading project management and architecture groups of the world.
InnoPlanner - InnoPlanner is a commercial based interior designing software.