gnuplot is a command-line program that can generate two- and three-dimensional plots of functions, data, and data fits.
License: Open Source
GnuPlot is a powerful tool for creating quick and efficient plots with a strong emphasis on scripting and automation, making it ideal for users needing performance with large datasets. In contrast, Matplotlib offers a more user-friendly and interactive experience, particularly for those within the Python ecosystem, making it suitable for a wide variety of data visualization tasks.