The best free alternative to Autodesk Inventor is FreeCAD, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Autodesk Inventor and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Autodesk Inventor are Autodesk Fusion, FluidCAD, Dune 3D and Shapr3D.
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.
Germany
EU
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.
United States
Parametric 3D CAD in browser using JavaScript scripting, fully interactive viewport editing, non-destructive feature tree control, direct geometry referencing, rapid prototyping, STEP import/export, smart defaults, minimal math, and open source availability.
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.
From design to manufacturing. Teams collaborate with more impact. Instinctive design meets multidevice capability and full interoperability for the ultimate 3D design workflow.
HungaryEU
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...
United States
United States
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.
GermanyEU
SolidWorks is a CAD software that can be used to create parametric models, assemblies, and drawings. It's typical to work with relationships (the alignment of elements with one another) and dimensions (alignment through values).
T-FLEX is a Parasolid-based parametric full-function CAD software application for 3D solid modeling and 2D design and drafting, developed and sold by Russia-based software company Top Systems. T-FLEX CAD is written for Microsoft Windows XP, Vista, and 7 32-bit and 64-bit...
Russia
DesignSpark Mechanical is a 3D modeling software reported to be easy to use so that all engineers will be able to create and share models.
United Kingdom
MakerSCAD is a web-based parametric 3D design software with a block-based programming language to create objects for 3D printing, animations, games and websites.
SlovakiaEU
