Computer-aided design (CAD) is the use of computer technology for the design of objects, real or virtual. It often refers to the drafting (technical drawing and engineering drawing) of a part or product, including entire buildings. However, CAD software is used in a wide variety of other fields such as electronics and woven fabrics.
CAD software may be used to design curves and figures in two-dimensional (“2D”) space; or curves, surfaces, or solids in three-dimensional (“3D”) objects.
The Windows CAD world has long been dominated by the extremely powerful AutoCAD software. Unfortunately, Unix support was dropped way back in 1994, and its authors, Autodesk, have no current plans to bring it to Linux. Whilst it is possible to run AutoCAD in Linux using Wine, the fact remains that it is expensive software, with no source code available. This article instead focuses on CAD software released under a freely distributable license, yet which retains a lot of the functionality offered by AutoCAD.
To provide an insight into the quality of software that is available, we have compiled a list of 17 high quality free Linux CAD applications. Hopefully, there will be something of interest here for anyone who wants to produce professional drawings.
Let’s explore the 17 CAD applications at hand. For each title we have compiled its own portal page, a full description with an in-depth analysis of its features, screenshots, together with links to relevant resources. Click each link in the table below to learn more about the software.
| CAD Software | |
|---|---|
| FreeCAD | 3D-Solid and general purpose design CAD/CAE |
| QCAD | Professional CAD System |
| LibreCAD | CAD in two dimensions |
| BRL-CAD | Constructive Solid Geometry (CSG) solid modeling system |
| OpenCASCADE | Technology, 3D modeling & numerical simulation |
| SALOME | Platform for numerical simulation |
| OpenSCAD | Programmers solid 3D CAD modeller |
| KiCad | Integrated environment for all of the stages of the design process |
| LeoCAD | Design virtual models you can build with LEGO bricks |
| SolveSpace | Parametric 3d CAD tool |
| CadQuery | Python parametric CAD scripting framework |
| Electric | The Electric VLSI Design System |
| gCAD3D | 3D CAD-CAM application which features an integrated 3D OpenGL viewer |
| XTrackCAD | CAD program for designing model railroad layouts |
| Dune 3D | Parametric 3D CAD |
| CAD Sketcher | Constraint-based geometry sketcher |
| Design | 2D CAD software for GNOME |
This article has been revamped in line with our recent announcement.
 Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Know a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |