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SolveSpaceBRL-CAD
Free

Free and open source under the GPL.

 Free

Free and open source under the LGPL.

Windows, macOS, Linux Windows, macOS, Linux
  • Real parametric constraint solving, so dimensions drive the model
  • Exports STL, STEP and DXF for 3D printing and machining
  • Constructive solid geometry with genuine analysis and ray tracing tools
  • Decades of development and a stable, scriptable command set
  • The interface is bare and the workflow unlike mainstream CAD packages
  • Not suited to large or highly complex assemblies
  • The interface is unlike commercial CAD and takes serious effort to learn
  • Not aimed at mechanical drafting or 3D printing workflows
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: LGPL-2.1
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.