A Customizable SVG Graph Visualization Engine (web-based; unknown)
This is a paper on a student project.
Cytoscape Web (web-based; Lesser GPL)
Cytoscape Web is a network visualisation library
that you can use to embed networks onto a webpage.
It is not a stand alone application for users;
it is a tool for developers to display networks on the web.
Dia (desktop; GPLv2)
Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows,
and is released under the GPL license.
Dia is roughly inspired by the commercial Windows program 'Visio,'
though more geared towards informal diagrams for casual use.
It can be used to draw many different kinds of diagrams.
It currently has special objects to help draw entity relationship diagrams,
UML diagrams, flowcharts, network diagrams, and many other diagrams.
It is also possible to add support for new shapes by writing simple XML files,
using a subset of SVG to draw the shape.
Diagramo (web-based; mixed)
Diasketch (web-based; unknown)
Create astonishing diagrams right in your browser;
let others view or change them without any need for a special tooling.
Access your diagrams even from your mobile device.
This seems to be an unreleased product or service by the author of JointJS
Gliffy (web-based; proprietary)
Easily create professional-quality flowcharts, diagrams, floor plans,
technical drawings, and more!
GoVisual Diagram Editor (desktop; proprietary)
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 styles available in the GoVisual libraries.
Graphity (web-based; proprietary)
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 ...
OmniGraffle for Mac (desktop; proprietary)
Need a diagram, process chart, quick page-layout, website wireframe or graphic design?
OmniGraffle can help you ...
Online Diagram Editor (web-based; proprietary)
This is a lightweight diagram editor that can work within a browser.
It can be embedded in a web page and communicate with the surrounding application code.
The user can create Objects and their Relations,
and associate with them custom application properties.
The resulting diagram can be saved for further editing
or exported in PNG format for presentation.
or save it on the server in a file or database.
Sketsa SVG Editor (web-based; proprietary)
Sketsa SVG Editor is a cross platform SVG vector drawing application.
With Sketsa, you can easily draw SVG vector graphics
that can be scaled and printed at any resolution,
without losing detail or clarity.
Visio (desktop; proprietary)
The advanced diagramming tools of Visio 2010 help you simplify complexity
with dynamic, data-driven visuals and new ways to share on the Web in real time.
Start by building your diagram with professional-looking templates and modern, pre-drawn shapes.
yEd Graph Editor (desktop; proprietary)
yEd is a powerful desktop application that can be used
to quickly and effectively generate high-quality diagrams.
Create diagrams manually, or import your external data for analysis.
Our automatic layout algorithms arrange even large data sets
with just the press of a button.