PlantUML

Dia is a GTK+ based diagram creation program for Linux, Unix and Windows released under the GPL license. Dia is roughly inspired by the commercial Windows program 'Visio', though more …

yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just …

Microsoft Office Visio makes it easy for IT and business professionals to visualize, explore, and communicate complex information. Go from complicated text and tables that are hard to understand to …

OmniGraffle can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to shapes even when they’re moved, and magically organizing diagrams with just...

Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of …

Creately makes diagramming and design easy. We do this with an access anywhere, online application that is purpose built for collaboration. Creately allows teams to solve problems and collaborate visually. …

"If they could see what Im thinking, theyd get it!" People just understand faster with pictures. It helps them see how information is connected, whether it is complete, and how …

Instead of starting with a blank screen, SmartDraw gives you the exact template you need. Then use simple commands to add your information and SmartDraw does the rest. There's no …

Umbrello UML Modeller is a Unified Modelling Language diagram programme for KDE. UML allows you to create diagrams of software and other systems in a standard format.

Browser based Chart and Diagram tool. Requires sign up. Free account allows one diagram to be saved. Very easy to use, professional looking. Main advantage is that diagrams can be …

Calligra Flow (formerly Kivio) is an easy to use diagramming and flowcharting application with tight integration to the other Calligra applications. It enables you to create network diagrams, organisation...

Create deep visual documents, adaptable and multi-level diagrams, flowcharts, concept maps, mind maps and models. Users can: - Define their own types of nodes and connectors, to reuse nomenclature, symbols,...

Easy diagram generator for Sequence Diagrams and Message Sequence Charts.

The GoVisual Diagram editor (GDE) provides powerful functionality for editing and automatic layout of diagrams. Diagrams are represented in form of graphs and cluster graphs. GDE contains all the layout …

SwordSoft Layout is an desktop application that makes it very easy for you to create, preview, and manage mockups of your website, mobile application or desktop application. With so many …

Whether you are a Business Architect, System Architect, Developer, Analyst or Designer, Modeliosoft meets your needs through its high quality solutions for modeling, and report, architecture or code...

Graphity is a diagram editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks.

Grapholite is a powerful online solution for the creation of flowcharts, org charts, mind maps, Venn charts, web site structures, etc. Can be used online and offline

Simple, clean and easy to use UML diagramming tool for MacOS X and iPad. Models! is a flexible diagramming tool. It doesn’t force you to follow strict, often useless rules …

NShape is an Open Source diagram designing framework for .NET WinForms. Software developers use NShape to integrate diagramming capabilities into their applications. Using NShape, applications let users view, annotate, modify …