Kroki Documentation

Convert plain text diagrams to images !

Kroki provides a unified HTTP API with support for BlockDiag (BlockDiag, SeqDiag, ActDiag, NwDiag), C4 (with PlantUML), Ditaa, Erd, GraphViz, Mermaid, Nomnoml, PlantUML, SvgBob and UMLet…​ and more to come!

Kroki is available as a Self-Managed instance.
We are also actively looking for sponsors to provide Kroki as a free service:

Self-Managed

Select this option if you want to download and install Kroki on your own infrastructure or in our public cloud environment.
Please refer to the documentation to install Kroki.

Free service

We are actively looking for sponsors to provide Kroki as a free service.
If you are interested, please 👋 contact us.

We also provide a server for demonstration purpose at: demo.kroki.io.

Please note that the demonstration server usage is restricted to reasonable, non-commercial use-cases. We provide no guarantee regarding uptime or latency.