dispcalGUI

dispcalGUI is a powerful and user-friendly GUI frontend for the open source color management system Argyll CMS by Graeme Gill. It includes several utilities such as dispcal, dispread, colprof, and dispwin, which allow you to calibrate and profile your display using a measurement device. While Argyll CMS can do much more, this software focuses on display calibration.

Upon launching dispcalGUI, two windows will appear: a terminal and a GUI. The terminal is used to display status messages and accept input during calibration. The GUI provides an intuitive interface for adjusting options and accessing various functionalities.

One of the best aspects of dispcalGUI is that it is completely free and available under the terms of the GNU General Public License (GPL). You are free to redistribute and modify it as needed. However, for more in-depth information and usage scenarios beyond display calibration, be sure to refer to the Argyll CMS documentation.

Overall, dispcalGUI is a robust and efficient tool for calibrating and profiling your display, and its user-friendly interface simplifies the process for even the most novice users.