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OpenVSP — CAD (Open Source)

OpenVSP is an open-source CAD solution from NASA. Compare it against 88 other CAD tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.

What is OpenVSP?

OpenVSP is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under CAD and published by NASA. Buyers typically evaluate OpenVSP when they need a dependable CAD option and want to weigh the trade-offs between free, open-source and paid tools before committing.

OpenVSP alternatives

If OpenVSP isn't the right fit, compare these CAD alternatives side by side:

ABViewerAC3DACISAlibre DesignAllplanAltium DesignerArchiCADAutoCADAutoCAD ElectricalAutodesk AliasAutodesk EAGLEAutodesk InventorAutodesk RevitBRL-CAD

Frequently asked questions

Is OpenVSP free?
Yes. OpenVSP is open source and free to use, with no purchase cost for the core product.
What are the best OpenVSP alternatives?
Popular CAD alternatives to OpenVSP include ABViewer, AC3D, ACIS, Alibre Design. See the full list of CAD on FreeSoftwareX.
What type of software is OpenVSP?
OpenVSP is an open-source CAD tool developed by NASA.

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