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Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, OSX, VMS, and many other platforms. The source code is copyrighted but freely distributed (i.e., you don't have to pay for it). It was originally created to allow scientists and students to visualize mathematical functions and data interactively, but has grown to support many non-interactive uses such as web scripting. It is also used as a plotting engine by third-party applications like Octave. Gnuplot has been supported and under active development since 1986.

Gnuplot supports many different types of 2D and 3D plots

Here is a Gallery of demos.

Gnuplot supports many different types of output

interactive screen display: cross-platform (Qt, wxWidgets, x11) or system-specific (MS Windows, OS/2)
direct output to file: postscript (including eps), pdf, png, gif, jpeg, LaTeX, metafont, emf, svg, ...
mouseable web display formats: HTML5, svg


Version 5.4 (previous stable) Gnuplot 6.0 (current stable)
Development version 6.1

Release History
  • gnuplot 6.0 Dec 2023   ( 6.0.0 Dec 2023)
  • gnuplot 5.4 Jul 2020     ( 5.4.10 Oct 2023)
  • gnuplot 5.2 Sep 2017   ( 5.2.8 Dec 2019)
  • gnuplot 5.0 Jan 2015
  • gnuplot 4.6 2012
  • gnuplot 4.4 2010
  • gnuplot 4.2 2007
  • gnuplot 4.0 2004
  • gnuplot 3.7 1999
  • gnuplot 3.5 1993
  • gnuplot 2.0 1990
  • gnuplot 1.0 1986
Copyright/licensing
        Gnuplot's copyright
 
Gnuplot Book Cover   Gnuplot in Action
Second Edition

by Philipp K. Janert
 
Updated for gnuplot 5
Manning Publications (2016)
ISBN: 1633430189
ISBN-13: 9781633430181
  Gnuplot 5
by Lee Phillips
 
Packt Publishing (2017)
ISBN : 978-0-692-92716-8