Grasshopper set of tools designed to provide interoperability interface between Houdini and Grasshopper.

Alternatives to native Rhino commands, Untrim and DeleteFaces, respectively, both for BRep model only.

Super fast and accurate energy and daylight modeling plugin that runs thousands of options to find the lowest cost and highest performance buildings.

Ivy is a Grasshopper add-on for mesh segmentation and fabrication.

Analysis Tools for Rhino

Import & export many CAD formats into Rhino (ACIS, CATIA, CGR, Creo, IFC, Inventor, JT, Parasolid, PLMXML, Revit, Solid Edge, NX, 3DPDF, SOLIDWORKS)

Bison is a landcape architecture plugin for Grasshopper + Rhino 6. It features tools for terrain mesh creation, analysis, editing, and annotation.

Ladybug and Honeybee are open source environmental plugins for Grasshopper to help designers create an environmentally-conscious architecture