The best alternative to Autodesk AutoCAD is FreeCAD, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Autodesk AutoCAD and many of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Autodesk AutoCAD are LibreCAD, DraftSight, BricsCAD and OpenSCAD.
A powerful open-source parametric 3D modeler ideal for mechanical engineering, supporting Python scripting, running on Windows, Linux, and Mac, with modular architecture allowing extensive adaptability and use with scientific computing libraries.
LibreCAD 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.
DraftSight is a professional-grade, open 2D CAD product for users who want a better way to read, write and share DWG files. DraftSight is easy to use and is available for professional CAD users, students and educators to download and activate for free.*
BricsCAD the first all-in-one CAD design solution in .dwg that answers all your needs; 2D drafting, 3D modeling, mechanical design, and BIM. BricsCAD is a cost-effective, innovative, and familiar CAD solution.
OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and MacOS.
Leading 3D CAD software for design, analysis, and product data management, developed by Dassault Systèmes. Enhances productivity, fosters collaboration, and accelerates time to market. Features include parametric modeling, photorealistic rendering, and strong PLM process support.
From design to manufacturing. Teams collaborate with more impact. Instinctive design meets multidevice capability and full interoperability for the ultimate 3D design workflow.
Siemens NX software is an integrated product design, engineering and manufacturing solution that helps you deliver better products faster and more efficiently.
Solid Edge is an industry-leading mechanical design system with exceptional tools for creating and managing 3D digital prototypes. With superior core modeling and process workflows, a unique focus on the needs of specific industries, and fully integrated design management, Solid...
ArchiCAD offers computer aided solutions for handling all common aspects of aesthetics and engineering during the whole design process of the built environment — buildings, interiors, urban areas, etc.
CAD Sketcher is a free and open-source project looking to enhance precision workflows in Blender by bringing CAD like tools, features and usability to Blender.
QCAD is an application for computer aided drafting in 2D. With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schemas and diagrams.
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I use Freecad to design my 3D printing models.