CadQuery is an intuitive, easy-to-use Python library for building parametric 3D CAD models.
Using CadQuery, you can write short, simple scripts that produce high quality CAD models. It is easy to make many different objects using a single script that can be customized.
This is free and open source software.
Key Features
- Build models with scripts that are as close as possible to how you’d describe the object to a human, using a standard, already established programming language.
- Create parametric models that can be very easily customized by end users.
- Output high quality CAD formats like STEP, AMF and 3MF in addition to traditional STL.
- Advanced modeling capabilities such as fillets, curvilinear extrudes, parametric curves and lofts.
- Build nested assemblies out of individual parts and other assemblies.
Website: cadquery.readthedocs.io
Support: GitHub Code Repository
Developer: Parametric Products Intellectual Holdings, LLC
License: Apache License v2.0

CadQuery is written in Python. Learn Python with our recommended free books and free tutorials.
Related 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 |
| KLayout | Viewer and editor for integrated circuit and mask design |
| Dune 3D | Parametric 3D CAD |
| CAD Sketcher | Constraint-based geometry sketcher |
| build123d | Python CAD programming library |
| Design | 2D CAD software for GNOME |
Read our verdict in the software roundup.
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