Gnuplot plot file
File type: Graphics file
A gplt file is a plain-text script for Gnuplot, a program for plotting data and mathematical functions.
The script contains commands that Gnuplot uses to create a graph or other plot.
File type category:
Graphics file
Date updated: November 5, 2026
Gnuplot is a portable, command-line-driven utility from the Gnuplot project for interactive data and function plotting. It is available on Windows, macOS, Linux and other Unix-like systems, and has historically run on platforms including UNIX, IBM OS/2, DOS, Macintosh, VMS and Atari systems.
A gplt file can contain plot commands, configuration settings, references to data files and, in some cases, data embedded in the script. Running the script in Gnuplot produces the requested plot in the selected output format.
Open a gplt file in Gnuplot to execute its plotting commands. Gnuplot is available for Windows, macOS, Linux and other supported platforms; a script can also be inspected or edited as plain text with a text editor.
ImageMagick is primarily useful for processing the image produced by Gnuplot, rather than for editing the plot script itself.
A gplt file is a script, so it is not normally converted directly. Run it with Gnuplot and select an output terminal to export the resulting plot as a format such as PNG, SVG or PDF. The exported image can then be further processed with ImageMagick.
Englishapplication/x-gnuplot
