Blender addons to make the bridge between Blender and geographic data
A free and open source multiplatform 3D parametric modeler
The programmer's solid 3D CAD modeller
The open source mesh processing system
Blockbench - A low poly 3D model editor
HARFANG 3D source code public repository
An interior design application to draw house plans & arrange furniture
3D modeler, 3D game maker, 3D demo maker
X3D is the open-standard format for 3D graphics scenes on the Web.
Xj3D is an open-source Java codebase for the X3D Graphics standard.
3D slider puzzles for kids; helps teach solid geometry
Java3d scenegraph editor
Growth-grammar related Interactive Modelling Platform
Open Source Solid Modeling CAD
A collection of time savers utilities for Carrara
Converts between many 3D data formats
Fix STL files for 3D printing