BRL-CAD
BRL-CAD Project
Download from the vendor
brlcad.org
A long-established solid modelling system developed originally for the US Army, based on constructive solid geometry rather than surfaces. It includes its own ray-tracing engine and is aimed at analysis — penetration studies, mass and volume calculation, and simulations that need a watertight, exact model. Its interface resembles nothing modern and the learning curve is steep, but anyone who needs reliable geometry for analysis rather than for drawing gets a very mature tool.
Ratings & Reviews
| Licence type | Completely Free, Open Source |
|---|---|
| Licence terms | Open-source licence. Free for any purpose including commercial work, with no time limit, no registration and no licence key. |
| Platforms | Linux, macOS, Windows |
| Engineering field | Civil Engineering, Mechanical Engineering |
| Tool type | CAD & Drafting |
| Vendor site | brlcad.org |
This link goes to the vendor site. EngiFree hosts no installers and distributes no cracked versions.
Last verified: 2026-09-02
