The JetChart Library is a Java class library that encompasses a wide range of functionalities aimed at data visualization and analysis, in the form of different types of charts. Data can be represented in many ways, like a sequence of connected points, bars, columns, filled areas, and more. JetChart can be integrated into Java applications and applets, and also supports GIF, JPEG and PNG encoding of chart images from non-visible applications, like servlets running in a headless environment.