Table of Contents
August 7, 2026 ยท View on GitHub
An online runner to play, learn, and create with D2, the modern diagram scripting language that turns text to diagrams.
Notice: This is not the repository for the D2 language. That can be found here.
Table of Contents
FAQ
What is this written in?
Vanilla HTML, CSS, and Javascript.
How does it work?
d2.js compiles and renders both Dagre and ELK layouts entirely within the browser.
Can I run it locally?
Yes. Just clone and follow the instructions in the Development section below.
Development
Run ./ci/dev.sh.
Prerequisites
Contributing
Contributions are welcome!
Dependencies
External dependencies are kept to a minimum. Currently they are:
- Monaco Editor for text editing features.
- Panzoom for SVG navigation.
Both are not ideal. Monaco is unnecessarily heavy and Panzoom lacks scrolling. The plan is to replace these one day.
If you're a contributor, please do not add any dependencies without discussing first.