Kroki
Creates diagrams from textual descriptions
- Authentication
- No auth
- HTTPS
- Yes
- CORS
- Yes
- Category
- Development
- Documentation / URL
- https://kroki.io
Overview
Kroki renders text-based diagrams (Mermaid, PlantUML, Graphviz, and 30+ more) — keyless (verified live).
Quick Start
Health (verified live — engine versions):
curl "https://kroki.io/health"{ "version": { "mermaid": "11.16.0", "plantuml": "1.2026.6", "dot": "14.1.3", "d2": "0.7.1" }, "status": "pass" }Render a diagram:
curl "https://kroki.io/graphviz/svg" \
-H "Content-Type: text/plain" \
-d 'digraph G { a -> b }'Authentication
None — keyless.
Rate Limits & Notes
- Free; be polite — no hard published limit.
- Self-hostable (Docker image).
FAQ
Is Kroki free? Yes — free and keyless (verified); self-hosting available.
What formats? Mermaid, PlantUML, Graphviz, D2, and 30+ engines (verified health).
Output? SVG/PNG/PDF by extension.
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