Gephi

Gephi is an open-source software for visualizing and analyzing large networks graphs. .

Free Open Source Mac OS X Windows Linux

NClass

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...

Free Open Source Windows Linux

Linkurious

An on-premise graph visualization and analysis software to investigate complex connected data.

Commercial Web

UML Designer

UML Designer provides a set of common diagrams to work with UML 2.5 models. The intent is to provide an easy way to make the transition from UML to domain specific...

Free Open Source Mac OS X Windows Linux

GoVisual Diagram Editor

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

Free Windows Linux

System Designer

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

Free Open Source Mac OS X Android iPhone Android Tablet Web

mermaid

An easy tool for generating diagrams and flowcharts from text in a similar manner as markdown.

Free Open Source Mac OS X Windows Linux Self-Hosted JavaScript

Gaphor

Gaphor is a Python-based, easy to use modeling environment. This means that you are able to create nice UML diagrams for documentation and to assist you with design...

Free Open Source Mac OS X Windows Linux

viewflow

Reusable Workflow Library. Let's build business apps faster and with less code.

Free Open Source Web Self-Hosted

SEQO

SEQO generates UML sequence diagrams from a simple text. A sequence diagram is an interaction diagram that shows how objects operate with one another and in what order.

Free Mac OS X Windows

Iterop

Imagine a company with simplified processes, efficient exchanges between colleagues and a real-time activity monitoring.

Commercial Web

MindBerry

MindBerry is a mind-mapping software for BlackBerry smartphones. It's the ideal software for organize your thoughts, manage information overload, increase your...

Commercial Blackberry

Neoclipse

Neoclipse is a standalone workbench application to interact with Neo4j (database directory or server). It supports Cypher, index searches, visualisation, graph updates.

Free Open Source Windows

Aspose.Diagram for .NET

Aspose.Diagram is a .NET Visio Diagramming component that allows working with VSD, VSS, VST, VSX, VTX, CDW and VDX files on Mono, C#, VB.NET, ASP.NET web applications...

Freemium Windows

blockdiag

blockdiag and its family generate diagram images from simply text file. Features: Supports many types of diagrams block diagram (w/ blockdiag) ...

Free Open Source Mac OS X Windows Linux

Theory Maker

Free online app for creating directed graphs, theories of change and other diagrams just by typing text.

Free Open Source Web

Webgraphviz

WebGraphviz is Graphviz in the Browser.

Free Web

BigHairyGoal

Big Hairy Goal is an easy-to-use tool for getting your ideas down and to arrange them in a way that gives you more insight. The approach is much like mind mapping but...

Commercial Mac OS X

PowerDraw

PowerDraw, made by using PowerCad, is a 2D vector draw application.

Free Windows

Mindmaps

Mindmaps is a mind mapping tool and a brainstorming application. It allows you to order your thoughts, store ideas and bring structure into complex concepts. You can...

Commercial Blackberry