@it (reads atit) is a free GIS plugin for Grasshopper to parse the geospatial data sets.

  Robots.IO  LESS INPUT. MORE OUTPUT   Are you finding it too slow to create robot simulations? Use IO to build a render

Urban Network Analyis (UNA) tools for RH5 and RH6 help designers and planners model pedestrian and bicycle access and trips over spatial networks.

EdiTree is the first set of useful open source components developed by EDIT Collective to provide easier manipulation of data structure and data manag

Culebra.NET is a 2D|3D Multi Object Behavior library written in C# (Wrapper around Culebra Java library) focused on hybrid system interactions.

This is the first "mtextur.com – Buildingmaterial-Hub with free CAD- & BIM-Textures for architecture and design" Rhino Plugin. The

GeoJSON tool by Cox Architecture Humpback is a set of tools which convert Grasshopper geometry into GeoJSON, and vise versa.

CFD, Virtual Wind Tunnel, and Building Physics for Grasshopper