Uml GitHub Repositories (2026) · Open Source Tools

Creates diagrams from textual descriptions!

Generate diagrams from textual description

Self-hosted AI workspace for software engineering capstone and course projects. Generate UML models, system designs, test cases and editable DOC specifications from requirements. Supports traceability, your own model provider and optional read-only MCP access.

ER schemas on a FigJam-like infinite canvas

JavaScript architecture diagrams and dependency graphs

Umple: Model-Oriented Programming - embed models in code and vice versa and generate complete systems. Save yourself lots of coding. Do it collaboratively online in UmpleOnline, in an IDE or on the command line.

Automatically generate PlantUML diagrams in javadoc

Asciidoctor.js extension to convert diagrams to images using Kroki!

A Notepad++ plugin to generate, view and export PlantUML diagrams

Generate evidence-grounded interactive software diagrams with offline HTML, SVG and PNG export.

UML Modeling Editor

Repo Laboratório de Desenvolvimento de Software

Arkdraw is an open-source diagramming app for creating flowcharts, UML, ER diagrams, network maps, wireframes, and mind maps with a built-in AI assistant that generates and edits diagrams from natural-language prompts.