Ditch Cheap AI Art, Get Classy Charts – Open Source!

Create editorial quality diagrams with AI. 27 types, brand customization, and no install needed. Open source and designer approved.

Cathryn Lavery, a seasoned technical writer and product designer, vented on her blog: “Every time I ask Claude to draw a diagram, I get those generic rounded-box things that have nothing to do with the rest of my site.”

So she decided to build her own AI tool specifically for generating high-quality diagrams. That decision gave birth to a rapidly rising open-source project on GitHub — diagram-design.

As soon as it launched, the project made quite a splash in developer circles. It has already gathered 5.9K Stars and continues to be actively updated on GitHub.

Its slogan is straightforward: Editorial diagrams your designer won’t hate.

Project Introduction

diagram-design is not a standalone diagramming application. It is a Skill (skill plugin) designed for Claude Code.