OpenStudio — CAD (Open Source)

OpenStudio is an open-source CAD solution from NREL. 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 OpenStudio?

OpenStudio 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 NREL. Buyers typically evaluate OpenStudio when they need a dependable CAD option and want to weigh the trade-offs between free, open-source and paid tools before committing.

• Category: CAD
• Brand: NREL
• License: Open Source

OpenStudio alternatives

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Frequently asked questions

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