ComfyUI Node: LLM Prompt Engine

Authored by antoinebou12

Created

Updated

3 stars

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

Category

UML

Inputs

template STRING
description STRING
positive STRING
negative STRING
template_file
  • general_mermaid.txt
  • kroki.txt
  • mermaid_flowchart.txt
  • plantuml_sequence.txt
  • uml_plan_then_code.txt
diagram_type
  • actdiag
  • blockdiag
  • bpmn
  • bytefield
  • c4plantuml
  • d2
  • dbml
  • ditaa
  • erd
  • excalidraw
  • graphviz
  • mermaid
  • nomnoml
  • nwdiag
  • packetdiag
  • pikchr
  • plantuml
  • rackdiag
  • seqdiag
  • structurizr
  • svgbob
  • symbolator
  • tikz
  • umlet
  • vega
  • vegalite
  • wavedrom
  • wireviz
output_format
  • png
  • svg
  • jpeg
  • pdf
  • txt
  • base64

Outputs

STRING

STRING

STRING

Extension: ComfyUI-UML

Render Mermaid, PlantUML, Graphviz, D2 and 28 Kroki diagram types as PNG/SVG/PDF in ComfyUI. Uses the Kroki API (no local setup) or optional local Mermaid/Graphviz. Includes a built-in zoomable viewer (Save to ComfyUI, shareable URLs), optional cairosvg for in-node SVG/PNG preview, and LLM Prompt Engine + LLM Call nodes to generate diagram code from templates.

Authored by antoinebou12

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