Leopard is an open source mesh processing solution for grasshopper.

A toolkit for agile performance-based building massing design generation, optimization, and exploration

VisualARQ adds flexible BIM features to Rhino, and speeds up the process of modeling an architectural project in 2D and 3D.

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

Volumetric Modeling with signed distance functions (SDF) for Grasshopper.

Implementation of the Wave Function Collapse that fills the entire envelope with discrete Modules respecting the adjacency Rules.

A suite of Grasshopper tools for visual, performance-based, multi-objective design space exploration

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