All of PlantUML's power — plus AI generation, Mermaid support, real-time preview, and a modern web editor. No JVM required.
Everything PlantUML does, plus AI and a modern editor.
Describe your system in English → get PlantUML code. No syntax memorization.
Use both syntaxes in one editor. Switch per diagram type.
See your diagram render as you type. No compile-and-refresh cycle.
Kroki renders PlantUML server-side. No Java install needed.
Cloud-saved diagrams with titles and categories. Access from anywhere.
SVG, PNG, source code, or full ZIP scaffold with architecture specs.
Free to start. 50 AI credits/month. No credit card required.
Get started for free →