Open source tool that provides methodological guidance, intuitive model editing, and viewing capabilities for Systems, Software and Hardware Architects.




Visual Paradigm is described as 'For UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development. VP-UML supports key modeling standards such as Unified Modeling Language (UML) 2.4, SysML, ERD, DFD, BPMN 2.0, ArchiMate 2.0, etc' and is a Diagram Editor in the development category. There are more than 50 alternatives to Visual Paradigm for a variety of platforms, including Windows, Web-based, Mac, Linux and Android apps. The best Visual Paradigm alternative is draw.io, which is free. Other great apps like Visual Paradigm are Excalidraw, yEd Graph Editor, Dia and Lucidchart.
Open source tool that provides methodological guidance, intuitive model editing, and viewing capabilities for Systems, Software and Hardware Architects.




FsmPro is a cross-platform tool for designing State Machines. It is a tool built with State Machines in mind and provides a list of features to support Code Generation from State Diagrams, Project Modelling and Documentation.

A lightweight HTML5/javascript library for UML 2 diagramming.
Alpha software. This project is in progress. Many functionalities are ready to be used. Nevertheless, some features and developments will not be neccessarily available for download.
Brainboard addresses the challenges of managing complex cloud infrastructures by offering a platform that promotes collaboration, streamlines workflows, and integrates multi-cloud environments. As a single source of truth, it remains in sync with your infrastructure, updating...




Sketch.systems helps software designers think about complex product behavior. Sketch out states, add prototypes, and clarify questions quickly.

EDGE Diagrammer is a diagramming tool for creating various types of diagrams including block diagrams, flowcharts, and organizational charts. It automatically connects lines to figures, adjusts when objects are moved, and modifies shape size when text is added.

Grafio allows you to make flow charts, org charts, Venn diagrams, mind maps, take notes, sketches and do other diagrams. Everything is custom and modifiable.



NClass is a free tool to easily create UML class diagrams with full C# and Java language support. The user interface is designed to be simple and user-friendly for easy and fast development. Properties, enums, delegates and other language specific elements are fully supported...



IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard.

Design flowcharts, UML, Venn, and mind map diagrams with customizable templates, varied symbols, shapes, connector styles, overlapping sheet support, and intuitive drag-and-drop editing. Export visuals as images, edit multiple diagrams, and organize complex data visibly.




Integrated development environment that can help you define models for your applications in a streamlined manner and test the results.




Apple Vision like gesture controls meet ChatGPT in an app to explore knowledge that doesn't require a headset or downloads. You just need a modern device with a webcam.



