Best Freeware Software

HTML5 canvas chart library (javascript) . Display and animate charts & graph in HTML5 Canvas.
Signal,pie,ring,led,digital,odometer, radial and lineal meters, ...

KIOSK Classic software is an option for projects that may not even be using kiosk hardware. PCs can be configured to run in “kiosk mode”, which prevents users from accessing certain system functions. Open Source Edition for study and private use.

The official home page of the JFreeChart project.

JFreeChart is a free 100% Java chart library that makes it easy for developers to display professional quality charts in their applications. JFreeChart's extensive feature set includes:
a consistent and well-documented API, supporting a wide range of chart types;
a flexible design that is easy to extend, and targets both server-side and client-side applications;
support for many output types, including Swing components, image files (including PNG and JPEG), and vector graphics file formats (including PDF, EPS and SVG);

JFreeChart is "open source" or, more specifically, free software.

It is distributed under the terms of the GNU Lesser General Public Licence (LGPL), which permits use in proprietary applications.

Vapour Liquid Equilibrium (VLE) is a program written in java for simulation of various VLE calculations like bubble point, dew point, flash point, Pxy and Txy ...