yFiles FLEX is an extensive web application framework that allows to easily create rich internet applications (RIAs). It provides essential building blocks for visualizing, animating, and editing graphs, diagrams, and networks. yFiles FLEX offers a comprehensive ActionScript™ class library for the client-side that brings a full-featured Adobe™ Flex™ UI component for viewing and editing diagrams.

Additionally, yFiles FLEX also provides server-side support for interconnecting with a yFiles layout server which can be used for automatic layout calculation and centralized data storage.