Gnuplot software (version 5.2.5) is a command-line driven program for creating scientific graphs and plots. It supports various types of plots including 2D and 3D plots, contour plots, and heatmaps. The software also has extensive customization options for labels, titles, and colors, and supports various output formats such as PNG, PDF, and SVG. Additionally, Gnuplot can be used in conjunction with other programming languages such as Python and C++.