Browse free open source UML tools and projects for Windows below. Use the toggles on the left to filter open source UML tools by OS, license, language, programming language, and project status.
ER Databese Model
UML modeling tool derived from StarUML compatible with Windows 7-10
an Open Source BPMN 2.0 / DMN 1.1 Modeler
Modeling tool supporting UML, BPMN and other standards
A free cross-platform editor for the DRAKON visual language.
TensorFlow.js is a library for machine learning in JavaScript
Development framework including code generator and UML ex/import
Elegant mongodb object modeling for node.js
ECLiPSe Constraint Logic Programming System
A tool for creating data models and databases for Microsoft SQL Server
Define composable configuration models through code
A Database System for Metamodeling and Method Engineering
A canvas library for generating technical drawings
Syntax tree editor for rapid annotation of existing text