GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
LabPlot - LabPlot is a KDE-application for interactive graphing and analysis of scientific data.
Chart.js - Easy, object oriented client side graphs for designers and developers.
Matplotlib - matplotlib is a python 2D plotting library which produces publication quality figures in a variety...
Google Charts - Interactive charts for browsers and mobile devices.