Diagram Python Packages

diagrams

:art: Diagram as Code for prototyping cloud system architectures

mkdocs-panzoom-plugin

MkDocs Plugin to enable pan & zoom on images and mermaid/d2 diagrams

mkdocs-kroki-plugin

MkDocs plugin for Kroki-Diagrams

mermaidx

Python-native Mermaid diagram converter – no browser, Node.js, or npm required. Renders diagrams to SVG/PNG/PDF using an embedded QuickJS engine and resvg, perfect for documentation automation and CI/CD pipelines.

sphinxcontrib-wavedrom

A sphinx extension that allows including wavedrom diagrams by using its text-based representation

sphinxcontrib-kroki

Embed PlantUML, DOT, etc. diagrams in your documentation using Kroki.

mmdr

A fast native Rust Mermaid diagram renderer. No browser required. 500-1000x faster than mermaid-cli.

pytm

A Pythonic framework for threat modeling

sphinx-mermaid

Mermaid graph support for sphinx generated documentations

mmdc

Python-native Mermaid diagram converter – no browser, Node.js, or npm required. Renders diagrams to SVG/PNG/PDF using an embedded QuickJS engine and resvg, perfect for documentation automation and CI/CD pipelines.

django-mermaid

Django template tag for rendering mermaid diagrams.

mcdview

Interactive HTML explorer for PostgreSQL data models. A self-contained page generated from a DDL file

markdown-blockdiag

blockdiag extension for Python Markdown

erdify

A zero-dependency ERD generator for your Python models — pure AST, no database required.

gaphor

Gaphor is the simple modeling tool

mrsd

A toolkit to generate MR sequence diagrams

hyperweave

Visual CLI for agents. Deterministic SVG diagrams, tables, and charts with embedded structured metadata. Zero JavaScript. Renders anywhere markdown does.

drawio

A library to draw networkx graphs with diagrams.net

pinviz

Programmatically generate GPIO connection diagrams in SVG format.

nf-metro

Metro-map-style SVG diagrams from Mermaid graph definitions, designed for visualizing bioinformatics pipeline workflows

abstractflow

Diagram-based, durable AI workflows for AbstractFramework. A visual editor inspired by UE4 Blueprints with drag-and-drop nodes, portable .flow bundles, recursive subflows, and multi-agent orchestration. Gateway-first architecture.

protobuf-uml-diagram

Create UML diagrams from Protobuf compiled .proto files using Python

markdown-mermaid-cli

Mermaid extension for Python-Markdown using mermaid-cli.

k3kroki

Convert diagrams to images via the kroki.io API — zero local dependencies