LabPlot - LabPlot is a KDE-application for interactive graphing and analysis of scientific data.
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.
GraphPad Prism - Overview. GraphPad Prism, available for both Windows and Mac computers, combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization.
Matplotlib - matplotlib is a python 2D plotting library which produces publication quality figures in a variety...
OriginLab - OriginLab is a data analysis tool that provide the engineers and scientist with the technical charts and system for 2D and 3D plotting and all kind of fitting including curve and peak fitting.
GeoGebra - GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching.