Free Grasshopper plugin for naval architecture and marine industry.

Earthworms provides a Python scripting environment with enhanced interactivity and flexibility based on RhinoPython.

Local Software is a grashopper plugin for handling GIS data, shapefiles and geoJSON site packages.

XL Line is a plug-in for Rhino. It's mainly useful for the CAD/2D drafting user for projecting the Curves/Line while drafting.

Add blind and countersunk rivets to your document. This plugin adds two commands: AddRivets and AddRivetCutters.

Catsule helps speed up workflow by loading Grasshopper when a Rhino file is opened.

Biber is a plug-in for Rhino-Grasshopper which enables Parametric Joinery.

Assembler is a Grasshopper plugin that helps you create and manage assemblages of parts, conceived with (but not limited to the architectural scale in mind.

Unofiicial Buildsoft Diamonds files generator

CondorShell is a plugging that allows Structural Engineersto create complex foundation models and slab models in Grasshopper and transfer the information to SAFE (Windows Only

Design Versioning for Grasshopper

Welcome to Metahopper - a tool for controlling Grasshopper with Grasshopper :

Includes general purpose components in math and geometry and fulfills missing necessities in Grasshopper.

Open-source combinatorial toolkit for discrete design. Offers tools to quickly generate geometry- and data-driven aggregations of generic parts.

Kangaroo is a Live Physics engine for interactive simulation, form-finding, optimisation and constraint solving.

Add sequentially numbered dots or text to the Rhino scene.