OGDF - The Open Graph Drawing Framework
- OGDF is an open-source C++ library containing a wealth of data structures and algorithms for graph drawing, including sophisticated features like SPQR-trees, planarity tests, graph planarization, and orthogonal layout.
- http://www.ogdf.net

gteditor
- A graph editor and tool for sketching graphs and performing some common graph operations developed in Java.
- http://code.google.com/p/gteditor/

GUESS: The Graph Exploration System
- An Open Source program written in Jython to visualize graphs and perform operations on them. Provides a Jython based scripting language with syntactic sugar for operating on graphs.
- http://graphexploration.cond.org/

GoDiagram - .NET and Java diagram components
- Add custom interactive diagrams to your .NET and Java user interfaces, including networks, workflows, flowcharts, org charts, design tools, and more. Flexible, powerful, extensible. Optional automatic layout & instruments.
- http://www.nwoods.com/

Nodes3D
- Nodes3D is an open-source, platform independent, interactive 3D graph visualization system based on C and OpenGL.
- http://brainmaps.org/index.php?p=desktop-apps-nodes3d

GRINEdit - "KAYUKA" Tools
- Open source visualization tools and library for graphs, relations, interactions and networks.
- http://www.nishiohirokazu.org/grinedit/

Graph Magics
- A tool for graph theory, having a generator and offering various algorithms: shortest paths, network flows, maximal clique, optimal coloring etc.
- http://www.graph-magics.com

HyperGraph
- HyperGraph visualizes hyperbolic trees and graphs. It is used to show topic maps, sitemaps or hierarchies.
- http://hypergraph.sourceforge.net

CCVisu: A Tool for Force-Directed Graph Layout
- CCVisu is a light-weight Java tool for force-directed graph layout and visual clustering. The layout is minimized using the algorithm of Barnes and Hut, and several energy models are supported. The resulting layouts are provided in text format, as VRML or
- http://mtc.epfl.ch/~beyer/CCVisu/

Walrus - Graph Visualization Tool
- Walrus is a tool for interactively visualizing large directed graphs in three-dimensional space. By employing 3D hyperbolic geometry to display graphs under a fisheye-like distortion, it provides a display that simultaneously shows local detail and the gl
- http://www.caida.org/tools/visualization/walrus/

The Open Source Java Graph Library
- JGraph is a freely available Java Graph Component for the visualization and layout of graphs.
- http://www.jgraph.com

ILOG JViews Graph Layout Package
- ILOG JViews Graph Layout Package simplifies complicated diagrams. The package rearranges complex graph data sets into clear on-screen drawings. Core information represented by nodes and links is much easier to understand.
- http://www.ilog.com/products/jviews/diagrammer/

Graph Drawing Software
- Draws automatically large, directed graphs in high quality. It includes a graph editor, navigation features, an API for use by other programs and is available for Windows, Linux, FreeBSD and Solaris in English and German.
- http://www.informatik.uni-bremen.de/agbkb/graph-visualization/

Carrier-class network topology swing components
- TWaver is a complete suite of Java graphic components for telecommunication operations support systems (OSS).
- http://www.servasoft.com

Mascopt
- A set of java tools for network and graph optimization problems. It features basic graph algorithms and graphical user interfaces. Mascopt is under LGPL license.
- http://www-sop.inria.fr/mascotte/mascopt

GoVisual
- GoVisual-API is a library of layout algorithms that can be integrated into C++, .NET or Java applications. Includes advanced layout for UML diagrams and cluster diagrams.
- http://www.oreas.com

Graph Visualisation Experiments
- Attempts to apply force-directed layout (by Touchgraph) on various datasets, including dmoz.org categories and web site link structures.
- http://kisd.de/~marian/graphvis/

Cabri-graphs
- Free Macintosh software for graph theory.
- http://www-cabri.imag.fr/CabriGraphes/cabri_anglais/gb_cabri_graph.html

Graph Drawing Resources
- Links to research groups and software.
- http://www.cs.brown.edu/people/rt/gd.html

GraphViz
- Open source graph (network) visualization project from AT&T Research. Has directed and undirected graph layout; many features for concrete diagrams, drivers for web and other graphics formats, and a plug-in architecture for GUIs and scripting language
- http://www.graphviz.org/

AGD - Algorithms for Graph Drawing
- AGD offers a broad range of existing algorithms for two-dimensional graph drawing and tools for implementing new algorithms. It is a product of a cooperation of groups in Halle, Köln, and Saarbrücken supported by the DFG in the program "Design, Ana
- http://aragorn.ads.tuwien.ac.at/AGD/

yFiles - the Java Graph Drawing Library
- yFiles is an extensive Java class library that provides algorithms and components for analyzing, viewing and layouting graphs, diagrams and networks.
- http://www.yworks.de/en/products_yfiles_about.htm

PIGALE - Public Implementation of a Graph Algorithm Library and Editor
- PIGALE is a graph editor and an algorithm library essentially concerned with planar graphs. Written in C++ and interfaced with the Qt library, it is particularly intended for graph theoretical research. PIGALE is released under GPL.
- http://pigale.sourceforge.net/

Tulip
- System dedicated to the visualization of huge graphs. It manages graphs with a number of elements (nodes and edges) up to 500,000 on a personal computer. It features 3D visualization and modification. GPL.
- http://www.tulip-software.org/

aiSee Graph Layout Software
- aiSee automatically calculates a customizable layout of graphs specified in GDL (graph description language). aiSee supports 15 basic graph layout algorithms, recursive subgraph nesting, fish-eye views and easy printing. It has been optimized to handle
- http://www.aisee.com/

Graphlet
- A toolkit for graph editors and graph algorithms. Unix and Win32 binaries for free download.
- http://infosun.fmi.uni-passau.de/Graphlet/

Pajek - a Package for Large Network Analysis
- This program runs under Windows NT/9x and provides some analysis tools for large networks and graph-drawing capabilities.
- http://vlado.fmf.uni-lj.si/pub/networks/pajek/

Tom Sawyer Software
- Graph analysis and visualization component software for ActiveX, C++, Java, JSP, MFC and .NET. Free trial download.
- http://www.tomsawyer.com/

GDToolkit - a Graph Drawing Toolkit
- GDToolkit (also known as GDT) is a Graph Drawing Toolkit designed to efficiently manipulate several types of graph, and to automatically draw them according to many different aesthetic criteria and constraints.
- http://www.dia.uniroma3.it/~gdt/