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BRL-CAD

BRL-CAD is a powerful cross-platform open source solid modeling system

LGPL-2.1-or-latermechanical/cad
★ 1k
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A constructive solid geometry modeling and analysis system with ray tracing, Boolean operations, and engineering analysis tools.

About the Project

Why use this?

BRL-CAD is a mature solid-modeling system originally developed for engineering analysis and ballistic research. It uses constructive solid geometry, supports precise Boolean modeling, and includes interactive geometry editing, ray tracing, and conversion tools.

Engineers choose BRL-CAD when they need rigorous solid geometry, large-model handling, or analysis-oriented modeling rather than a conventional feature-based CAD workflow. It is particularly relevant to defense, research, and scientific visualization applications.

Key Features

  • Constructive solid geometry and precise Boolean modeling
  • Ray tracing and geometric analysis
  • Extensive format conversion tools
  • Cross-platform C/C++ architecture
  • Suitable for engineering research and complex solid models
Tool / Hosted
https://brlcad.org/
Replaces / Alternative to
PTC Creo, Siemens NX
Free layer
open-source