SDKs

Name	Description
Prefuse	Extensible open source Java visualization toolkit
Flare	Flare is a collection of ActionScript 3 classes for building a wide variety of interactive visualizations.
VTK	Open source software system for 3D computer graphics, image processing, and visualization for C++,Tcl/Tk, Java, and Python
JGraph	Open source graph component for Java.
JUNG	Open source Java Universal Network/Graph Framework
Tom Sawyer	Commercial graph visualization
yWorks	Commercial graph visualization and editor
Processing	Visual programming environment/language
Piccolo	2D open source Java and .Net structured graphics and Zoomable User Interfaces toolkit
Google Visualization	Web-based javascript visualization
Zest	The Eclipse Visualization Toolkit
JIT	JavaScript Information Visualization Toolkit
JuiceKit	Visualization toolkit for web applications
Eye-Sys	Visualization toolkit, particularly for graphs
Titan	InfoVis toolkit built on top of VTK
Highcharts	Interactive JavaScript charting library that is Free for non-commercial use.