Top 12 Autodesk 123D Design Alternatives

Autodesk AutoCAD is a commercial computer-aided design (CAD) and drafting software application.

An open source 2D CAD application for Windows, Apple and Linux.

Dassault Systèmes SolidWorks Corp. develops and markets 3D CAD design software, analysis software, and product data management software. SolidWorks is the leading supplier of 3D CAD product design engineering software.

Discover Dassault Systèmes®' DRAFTSIGHT™ Professional CAD software that lets you create, edit, view and markup any kind of 2D drawing. Learn more here.

3D for Everyone

An open-source parametric 3D modeler

A powerful CAD platform, with features familiar to you from native .dwg applications.

BRL-CAD: Open Source Solid Modeling

nanoCAD is a pro-grade 2D CAD system with native DWG support and full customizability.

Design and make things in 3D like never before. DesignSpark Mechanical is a free mechanical CAD software, which enables users to rapidly prototype or reverse engineer any physical object.

SOLVESPACE is a parametric 3D CAD program with extrude, revolve, union and difference functions.

QCAD is an application for computer aided drafting in 2D.