CAD Exchanger
7.6#1 in 3d file converter softwareFrom $590 a yearAndroidiOSWebAPI
VisitCAD Exchanger suits people who need to inspect or convert CAD and BIM data, and developers adding that data access to applications. Its SDK is also described for 3D web, AR/VR, Unity, manufacturing-as-a-service, and engineering applications.
meshio may suit scientists and engineers who need Python or command-line tools to read, write or convert unstructured mesh files. It also supports workflows using XDMF time series or ParaView.