Lucidchart
Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.
Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams. Completely free. Cross-platform. Violet is intended for developers...
Violet is a UML editor with these benefits: Very easy to learn and use. Draws nicelooking diagrams. Completely free. Crossplatform. Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly.
uml uml-diagrams uml-modeling
Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.
Freemium
Pencil is a standalone app or Firefox extension that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
Free Open Source Mac OS X Windows Linux Firefox Electron / Atom Shell
Visual Paradigm 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.
Free Personal
Lightweight, powerful, easy to use, UML tool Software Ideas Modeler is a lightweight and powerful CASE tool. It supports UML 2.2 diagrams and a lot of other ones. Software Ideas Modeler is freeware (for non-commercial use).
Free Personal Windows
Simple vector graphics editor for creating flowcharts, UML class diagrams, illustrations and slide shows.
Free Windows
Astah Community is an add-on tool for your UML that is ready to use the instant you download it, allowing your UML to be quickly and easily enhanced, and refining your...
Free Windows Linux
WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to recent Delphi editions, reducing dependence on third party components...
Free Open Source Windows
graphical modelling open source uml2 tool based on eclipse environment.
Free Open Source Mac OS X Windows Linux Eclipse
WireframeSketcher is a software tool that helps quickly create wireframes, mockups and prototypes for desktop, web and mobile applications. It comes both as a plug-in...
Commercial Mac OS X Windows Linux Eclipse
Clickcharts flowchart software allows for easy drawing of diagrams and flowcharts to provide a way of organising and displaying data. Lay out your ideas, organisation...
Free Personal Mac OS X Windows Android Kindle Fire
MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software. It has a...
Commercial Windows Linux Android iPhone Web
A Powerful idea processor.It's Open Source and Freeware. Create UML Diagrams, Network Diagrams, Flowcharts and many other types of diagrams with the versatile...
Free Open Source Windows Linux
With this service you can create, save and share in real-time UML (soon many more) diagrams. You can use the integrated workspace for editing diagrams in a sharing...
Free Web