Open Source Autodesk AutoCAD Alternatives

Alternatives to Autodesk AutoCAD for all platforms with Open Source License

FreeCAD

FreeCAD is a general purpose parametric 3D CAD modeler. The development is completely Open Source (LGPL License). FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialties. FreeCAD features tools similar to Catia, SolidWorks or Solid Edge, and therefore also falls into the category of MCAD, PLM, CAx and CAE.

Free Open Source Mac Windows Linux
Parametric Modeling Windows XP Compatibility Drawing 2D DWG support Add a feature

194 Like
- Freecad is (as mentioned in the description) for 3D parametric CAD, and has no drafting functionality worth speaking of. Not a bad program, but certainly not an AutoCAD replacement. It has much more similarity to SolidWorks than AutoCAD Guest • Jan 2017 • 12 agrees and 6 disagrees
- I use Freecad to design my 3D printing models. Guest • Oct 2015 • 8 agrees and 4 disagrees
- Very good app, has many workbenches for different branches of engineering. It has a very helpful community forum. I really recommend trying it before looking for any other alternative. Guest • Jun 2017
- Not bad for a free Software, but Workflow seems very antiquated and unneccessarily complicated. It lacks logic on available tools in different workbenches. There are much ways to get to your goal but every way takes really a lot of clicks and more of trial and error. Guest • Aug 2017 • 2 agrees and 2 disagrees
- AutoCAD is a 2D drawing program, mostly used for architecture and structures. FreeCAD is 3D and aimed at mechanical engineers. They do different things. Guest • Feb 2018
- Because is an user friendly software and is free to use.Autodesk Autocad is very expensive eduardoortiz1 • Mar 2018 • 0 agrees and 1 disagrees
- Not directly supporting DWG: needs a commercial/trial license of a file converter Guest • Apr 2017 • 2 agrees and 3 disagrees
- FreeCAD is not a bad program, but it seems to lack functionality that AutoCAD provides. Currently FreeCAD seems to be in an early stage of development, and should probably not be considered for use in a professional production context, as a replacement for AutoCAD. Guest • Mar 2017 • 0 agrees and 2 disagrees
- FreeCAD is a software for 3d parametric model, AutoCAD is not that. Guest • Sep 2015 • 0 agrees and 6 disagrees
LibreCAD

LibreCAD (originally QCad then CADuntu) is an open source 2D CAD application for Windows, Apple and Linux. It is based on Qt, which is a leading cross-platform application and UI development framework. LibreCAD can read DWG files (and others) as of the latest Nightly build. It writes DXF files, but can also export SVG, JPG, PNG, PDF and other files.

Free Open Source Mac Windows Linux PortableApps.com
Construction layers Portable Add a feature

99 Like
- LibreCAD is only a 2d Drafting software while AutoCAD also has 3d modelling capabilities Guest • May 2016 • 6 agrees and 6 disagrees
- No blockeditor or creating dynamic blocks. Guest • Feb 2018
- If you know Autocad, you will learn librecad lightning fast. Guest • Jan 2018 • 0 agrees and 1 disagrees
- Similar GUI like AutoCAD, and for 2D drawing, it is a perfect solution Guest • Jul 2017 • 0 agrees and 2 disagrees
OpenSCAD

OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and MacOS. Unlike most free software for creating 3D models (such as the famous application Blender) it does not focus on the artistic aspects of 3D modelling but instead on the CAD aspects.

Free Open Source Mac Windows Linux
No features added Add a feature

50 Like
SolveSpace

SolveSpace is an Open Source 2D and 3D CAD (computer-aided design) program. It is a constraint-based parametric modeler with simple mechanical simulation capabilities. It is developed by Jonathan Westhues.

Free Open Source Mac Windows Linux
Parametric Modeling Computer-aided machining (CAM) Portable Add a feature

21 Like
BRL-CAD

BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for robust geometric representation, with more than 20 years of active development.

Free Open Source Mac Windows Linux
No features added Add a feature

41 Like
Open CASCADE

Open CASCADE Technology is a software development platform freely available in open source. It includes components for 3D surface and solid modeling, visualization, data exchange and rapid application development. Open CASCADE Technology can be best applied in development of numerical simulation software including CAD/CAM/CAE, AEC and GIS, as well as PDM applications. System requirements: http://www.opencascade.org/getocc/require/

Free Open Source Windows Linux
No features added Add a feature

6 Like
NaroCAD

NaroCAD is a fully fledged and extensible 3D parametric modeling CAD application. The goal of this project is to develop a fully fledged and extensible 3D CAD software based on the concept of parametric modeling of solids, comparable to well known solutions. These functionalities are interrelated through Model Associativity and are exposed through a GUI. The general usability specifications like saving, importing are described in General functionality specifications .

Free Open Source Windows
Parametric Modeling Add a feature

14 Like
- Discontinued The project is no longer developed. Last version, 1.8.8, released in December 2014, can be still downloaded from the official website.
ImplicitCAD

ImplicitCAD is a programmatic CAD program, implemented in Haskell. Unlike traditional CAD programs, programmatic CAD programs use text descriptions of objects, as in programming. Concepts like variables, control structures and abstraction are used, just as in programming.

Free Open Source Mac Windows Linux
No features added Add a feature

1 Like
Archimedes

Archimedes is a free and open source CAD (Computer Aided Design) software. It is a robust system built over Eclipse’s Rich Client Java Platform fully based on plug ins. This means it is easily extensible but also has a pretty thin core that allows you to select the features you need and drop the other ones easily.

Free Open Source Mac Windows Linux
Extensible by Plugins/Extensions Add a feature

7 Like
- Discontinued No ongoing development, but the application is still usable.
VARKON

Varkon is a very powerful parametric 2D/3D CAD, modeling and application development tool for engineering, design, architecture, etc. It does 2D drafting, 2D and 3D modeling, sculptured surface modeling, and even animations. Varkon is a free CAD system and high level development tool for Engineering, Computer Aided Design and Product Modeling applications.

Free Open Source Windows Linux
Parametric Modeling Add a feature

2 Like
- Discontinued Last Update: 2012-11-18. See https://sourceforge.net/projects/varkon/