StarUML

Plans and prices

Every plan, in full

On the record

Code generation

Code generation for Java, C#, C++, and Python is available through open-source extensions.staruml.io · read 7 Oct 2026

Diagram generation

Users can create diagrams from Mermaid syntax by writing text descriptions.staruml.io · read 7 Oct 2026

Diagram types

UML 2,entity-relationship,data flow,flowchart,mindmap,C4,SysML,BPMN,UI wireframe,AWS architecture,GCP architecture,Azure architecturestaruml.io · read 20 Sep 2026

Educational discount

The maker offers a 30% educational discount for students, teachers, universities, and schools, subject to proof of eligibility.staruml.io · read 7 Oct 2026

Extensions

StarUML is designed to be extended and customized with JavaScript, and its registry lists community-developed open-source or proprietary extensions.staruml.io · read 7 Oct 2026

Maker and headquarters

MKLabs identifies itself as a software development company, names Seoul, Republic of Korea as its headquarters address, and identifies Minkyu Lee as its founder and CEO.mklaabs.com · read 7 Oct 2026

Model files and CLI

Modeling data is stored in JSON, and the command-line interface can generate code, documentation, and images.staruml.io · read 7 Oct 2026

Modeling languages

A single project can use UML, ERD, Dataflow, Flowchart, Mindmap, C4, SysML, BPMN, Wireframe, AWS, GCP, and Azure modeling.staruml.io · read 7 Oct 2026

Platform requirements

StarUML is available for macOS 10.13 or later, Windows 10 or later, and Linux, with Ubuntu 22.04 or Fedora 40 or later listed as requirements.staruml.io · read 7 Oct 2026

Pricing terms

The pricing page says payment is one-time for each device, with no monthly or annual fees.staruml.io · read 7 Oct 2026

Privacy and security

MKLabs says it uses technical and organizational security measures to protect personal information, while noting that no internet transmission or storage technology can be guaranteed fully secure.staruml.io · read 7 Oct 2026

Purpose

StarUML describes itself as a software modeler for agile and concise modeling.staruml.io · read 7 Oct 2026

Real-time collaboration

Yesstaruml.io · read 20 Sep 2026

Support

The privacy notice directs questions and concerns to [email protected].staruml.io · read 7 Oct 2026

Trial

The download page offers a 30-day free trial.staruml.io · read 7 Oct 2026

UML diagrams

StarUML supports most UML 2 diagrams, including class, package, component, deployment, use case, sequence, statechart, and activity diagrams.staruml.io · read 7 Oct 2026

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