CAD Software

• 
  AutoCADFree to try

  CAD software with design automation plus toolset, web, and mobile apps.

• 
  InventorFree to try

  Professional-grade 3D CAD software for product design and engineering.

• 
  BrickLink StudioFree

  Build, render, and create instructions.

• 
  Solid Edge Community EditionFree

  Free professional 3D CAD software for the engineering community.

• 
  AutoCAD LTFree to try

  Precision 2D drafting and documentation software includes AutoCAD web and mobile apps.

• 
  KiCad EDAFree

  A Cross Platform and Open Source Electronics Design Automation Suite.

• 
  LibreCADFree

  A free Open Source CAD application.

• 
  Rigs of RodsFree

  A free/libre soft-body physics simulator mainly targeted at simulating vehicle physics.

• 
  ProfiCADFree to try

  Electrical schematics software.

• 
  QucsFree

  An integrated circuit simulator.

• 
  Any PDF to DWG ConverterFree to try

  Convert PDF to DWG and PDF to DXF format for fast and efficient editing in AutoCAD.

• 
  DWG TrueViewFree
• 
  DWG FastViewFree

  A lightweight CAD design software for fast, precisely & easily opening, viewing & editing CAD files.

• 
  LDrawFree

  An open standard for LEGO CAD programs that allow the user to create virtual LEGO models and scenes.

• 
  LEGO Digital DesignerFree

  A virtual Lego with an unlimited amount of blocks and accessories.

• 
  QCADFree

  The Open Source CAD System For Everyone.

• 
  Autodesk FusionFree to try
• 
  KLayoutFree

  Mask layout viewer and editor for the chip design engineer.

• 
  BRL‑CADFree

  A powerful open source cross-platform solid modeling system.

• 
  Any DWG to Image ConverterFree to try

  Convert DWG, DXF and DWF files to TIF (TIFF), JPG (JPEG), BMP, GIF, PNG, TGA, PCX, WMF and EMF without the need of AutoCAD.

• 
  CorelCADFree to try

  The professional, affordable, and simplified CAD software.

• 
  Residential Wire ProFree to try

  Make the design, creation and printing of residential electrical floor plans fast and easy.

• 
  pCon.plannerFree to try

  Create impressive interiors.

• 
  Canvas XFree to try

  Specially designed to make it possible for engineers, small business owners, and technical graphics professionals to illustrate and communicate with confidence.