Architecture as a code

Visualize, collaborate on, and evolve your software architecture with always up-to-date, live diagrams generated from your code.

docs - playground - demo

What is LikeC4? Why "like"?

LikeC4 is a modeling language for describing software architecture and tools to generate diagrams from the model.

LikeC4 is inspired by C4 Model and Structurizr DSL, but provides some flexibility. You customize or define your own notation, element types, and any number of nested levels in architecture model.
Perfectly tailored to your needs.

What does LikeC4 look like?

LikeC4 source:

Run CLI to preview:

npx likec4 start

And result:

Template repository - likec4/template
Deployed - https://template.likec4.dev

StackBlitz does not support extensions, so no validation, syntax highlighting and etc.
You can try with github.dev and suggested extension.

Check Tutorial - for a quick overview of LikeC4.

Getting help

We are always happy to help you get started:

• Join Discord community – it is the easiest way to get help
• GitHub Discussions – ask anything about the project or give feedback

Contributors

Become a contributor

Support development

LikeC4 is a MIT-licensed open source project with its ongoing development made possible entirely by your support.
If you like the project, please consider contributing financially to help grow and improve it.
You can support us via OpenCollective or GitHub Sponsors.

License

This project is released under the MIT License