Free alternatives to Fusion 360

Autodesk's cloud CAD/CAM/CAE tool, popular with makers and start-ups. Here are 8 free options, most popular first.

FreeCAD

3D & parametric CAD

Open-source parametric 3D modeller for real-life objects

Stars: ★ 34.5k
Licence: LGPL-2.1+
Updated: yesterday

Alternative to SolidWorks, Fusion 360

OpenSCAD

Code CAD

The programmers' solid 3D CAD modeller

Stars: ★ 10.5k
Licence: GPL-2.0
Updated: yesterday

Alternative to Fusion 360

CadQuery

Code CAD

Python library for building parametric 3D CAD models

Stars: ★ 6k
Licence: Apache-2.0
Updated: yesterday

Alternative to Fusion 360

SolveSpace

3D & parametric CAD

Lightweight parametric 2D/3D CAD with a constraint solver

Stars: ★ 4.2k
Licence: GPL-3.0
Updated: 4 days ago

Alternative to SolidWorks, Fusion 360

build123d

Code CAD

Pythonic code-CAD framework on the OpenCascade kernel

Stars: ★ 3.5k
Licence: Apache-2.0
Updated: yesterday

Alternative to Fusion 360

Dune 3D

3D & parametric CAD

Modern parametric 3D CAD built on SolveSpace's solver and OpenCascade

Stars: ★ 2.1k
Licence: GPL-3.0
Updated: 2 days ago

Alternative to Fusion 360, SolidWorks

Kiri:Moto

3D printing & CAM

Browser-based slicer and CAM for 3D printers, CNC and lasers

Stars: ★ 921
Licence: MIT
Updated: 15 days ago

Alternative to Simplify3D, Fusion 360

Onshape Free

3D & parametric CAD

Free plan of PTC's browser-based professional CAD

Licence: Proprietary
Status: Free (proprietary)

Alternative to SolidWorks, Fusion 360

Check file compatibility before switching. Free tools import STEP, DXF and other neutral formats well, but native SolidWorks, Altium or Revit files, drawing standards and PDM workflows may not carry over cleanly.