ArchiCAD - ArchiCAD 16 enables BIM modeling with a new green approach to planning. Create anything you need with ArchiCAD's flexible new features for design.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
ARCHLine.XP - BIM / CAD Software for 3D Architectural and Interior Design
Fritzing - Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to...
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.