a parametric 3D CAD modeler
The programmer's solid 3D CAD modeller
A free and open source multiplatform 3D parametric modeler
A math-inspired CAD program in haskell. CSG, bevels, and shells
Cross-platform Open-source 2D CAD
An interactive viewer for three-dimensional chemical structures.
Model Railway CAD program
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
A Cross Platform and Open Source Electronics Design Automation Suite
Open-Source Multiphysics FEA (FEM) Package
Static and Dynamic Structural Analysis of 2D and 3D frames.
Free and open source pattern design software
An EnergyPlus shell for parametric studies and more ...
A Full PLM system based on odoo
Draw vector graphics to scale using a descriptive language
Draw curves, colored 2D maps with CAD capabilities
RHT-LA : Applicatif Tracé Ligne Aérienne HT
Software for electromagnetic simulation
Simple Road Design and Earthworks
LibrePLM integrates CAD editors in Odoo / LibrERP
Open source 3D software based on opencascade(CAD)