The best CAD alternative to SOLIDWORKS is FreeCAD, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to SOLIDWORKS and loads of them are CAD Software so hopefully you can find a suitable replacement. Other interesting CAD Software alternatives to SOLIDWORKS are Onshape, SketchUp, LibreCAD and Autodesk AutoCAD.
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.
Onshape is a professional CAD system – Parts, Assemblies, Drawings – with version control and collaboration built in. Each Onshape plan (Free, Education, Professional, and Enterprise) gives you all of the CAD and data management functionality with no time limit.
Comprehensive 3D modeling software ideal for architecture, engineering, film, and gaming. It includes features like easy-to-use interface, sun and shadow analysis, color experimenting, and mock-up creation. Available in freeware and professional versions for diverse needs.
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.
Leading CAD software known for its robust 2D and 3D modeling capabilities, facilitating intricate designs in architecture, engineering, and construction across Mac, PC, and web. Features include a dynamic API for customization, cloud access, and subscription-based service for continual updates and collaborations.
Integrated CAD, CAM, and CAE suite offering cloud modeling, simulation, and manufacturing tools with collaborative editing, free-form and parametric design, licensing for students, hobbyists, and startups, plus support for 3D printing and CNC machining.
Software for 3D mechanical design, simulation, and visualization. Provides parametric, direct, and freeform design options, along with integrated simulation, CAM tools, and advanced rendering up to 16K resolution. Features include section views and customizable rendering environments.
OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and MacOS.
SolveSpace is a parametric 3D CAD program with extrude, revolve, union and difference functions. Save/Export as DXF, PDF, SVG, STL, STEP. Mesh generation expected by most 3d printers.
Dune 3D operates as a parametric 3D Computer-Aided Design (CAD) software. It provides users with the capability to sketch and constrain both in 2D and 3D dimensions. Furthermore, it allows for the addition of chamfers and fillets to designs.
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...
CATIA (Computer Aided Three-dimensional Interactive Application) (in English usually pronounced /k?'ti?/) is a multi-platform CAD/CAM/CAE commercial software suite developed by the French company Dassault Systèmes.
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AS far as I have tried, FreeCAD is the only FOSS alternative to Solidworks/Catia/PTC that has a funtional workflow. It is the best of a poor bunch.