CAD Software

Solid Edge Community Edition
Free
Free professional 3D CAD software for the engineering community.
KiCad EDA
Free (Open Source)
A Cross Platform and Open Source Electronics Design Automation Suite.
BrickLink Studio
Free
Build, render, and create instructions.
Residential Wire Pro
Free Trial
Make the design, creation and printing of residential electrical floor plans fast and easy.
DWG TrueView
Free
View and convert 2D and 3D DWG files for free.
LibreCAD
Free (Open Source)
A free Open Source CAD application.
QCAD
Free
The Open Source CAD System For Everyone.
Gmsh
Free
A three-dimensional finite element mesh generator with built-in pre- and post-processing facilities.
Rigs of Rods
Free
A free/libre soft-body physics simulator mainly targeted at simulating vehicle physics.
ProfiCAD
Free Trial
Electrical schematics software.
KLayout
Free
Mask layout viewer and editor for the chip design engineer.
LibrePCB
Free
Create electronics the easy way.
BRL‑CAD
Free
A powerful open source cross-platform solid modeling system.
OpenSCAD
Free
The Programmers Solid 3D CAD Modeller.
pCon.planner
Free Trial
Create impressive interiors.
SCARM
Free Trial
Simple Computer Aided Railway Modeller.
DWG FastView
Free
A lightweight CAD design software for fast, precisely & easily opening, viewing & editing CAD files.
LEGO Digital Designer
Free
A virtual Lego with an unlimited amount of blocks and accessories.
Qucs
Free
An integrated circuit simulator.
LayoutEditor
Free
Edit designs for MEMS and IC fabrication.