algorithmic modeling for Rhino


Human UI

Human UI is a new interface paradigm for Grasshopper. Create professional looking Grasshopper apps with custom user interfaces without writing any code.

Note: Human UI is now an open source project. It was originally developed at NBBJ by the Design Computation Leadership Team over the course of about 10 months in 2015-2016.

Primary development by:

Andrew Heumann / andheum / @andrewheumann

Lead Developer

Marc Syp / marcsyp / @mpsyp

Product Manager

Nate Holland / nateholland / @_NateHolland

Contributing Developer



Gone are the days of faking a user interface by laying out sliders and text panels and hiding wires on the Grasshopper canvas. Human UI interfaces are entirely separate from the Grasshopper canvas and leverage the power of Windows Presentation Foundation (WPF), a graphical subsystem for rendering user interfaces in the Windows environment.

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In other words: Human UI makes your GH definition feel like a Windows app. Create tabbed views, dynamic sliders, pulldown menus, checkboxes, and even 3D viewports and web browsers that look great and make sense to anyone--including designers and clients with no understanding of Grasshopper.


Download the plugin + sample files:


View the project on Bitbucket:



We look forward to seeing where this project takes you, please share your projects made with Human UI!

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