The best open source alternative to BRL-CAD is FreeCAD. If that doesn't suit you, our users have ranked more than 50 alternatives to BRL-CAD and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to BRL-CAD are LibreCAD, OpenSCAD, Dune 3D and CADAM.
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.
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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.
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OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and MacOS.
AustriaEU
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.
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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.
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SolidCraft is an open-source parametric 3D CAD application written in pure Rust. Sketch on a plane, constrain and dimension the sketch, turn profiles into solids with features on a timeline, and change a parameter to watch the whole timeline rebuild.
SALOME can be used as standalone application for generation of CAD models, their preparation for numerical calculations and post-processing of the calculation results. SALOME can also be used as a platform for integration of the external third-party numerical codes to produce a...
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
CadQuery is an intuitive, easy-to-use Python module 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.
pythonOCC is a 3D CAD/PLM development library for the Python programming language. It provides 3D hybrid modeling, data exchange (support for the STEP/IGES file
