Ladybug Tools
(by Ladybug Tools)
Ladybug Tools is a collection of open source computer applications that support environmental design and education.
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Ladybug allows you to import and analyze standard weather data in Grasshopper; draw diagrams like Sun-path, wind-rose, radiation-rose, etc; customize the diagrams in several ways; run radiation analysis, shadow studies, and view analysis.

Honeybee connects Grasshopper3D to validated simulation engines such as EnergyPlus/OpenStudio and Radiance for building energy, comfort, daylighting and lighting simulation.

Dragonfly enables the creation and manipulation of large-scale EnergyPlus and Radiance models by capitalizing on an abstracted 2D representation of building geometry, where all rooms are assumed to be extrusions of floor plates.

Butterfly connects Grasshopper to the OpenFOAM engine, wich can be used to run advanced computational fluid dynamic (CFD) simulations.

All questions about the software should be posted to our forum (  DO NOT POST HERE ON THE FOOD4RHINO PAGE.

Licensed under @license AGPL-3.0+: ( Read more here about the license.

More information avaialable at