DisplayCAL (formerly known as dispcalGUI) - Open Source Display Calibration and Characterization powered by Argyll CMS

Lagom LCD monitor - Lagom LCD Monitor is one of the best monitor calibration software that combines monitor calibration technology with an easy-to-use interface.

QuickGamma - monitor gamma calibration, monitor gamma correction, monitor gamma adjustment, adjust monitor gamma, calibrate monitor gamma, adjust monitor brightness and contrast, monitor gamma correction utility

CalMAN ColorMatch - CalMAN ColorMatch is a suite of color calibration and analysis tools that enables you in making videos in the post-production industry to achieve accurate, consistent, and repeatable images across a wide variety of input sources.

SuperCal - Visual display calibrator for Mac that generates ICC, ColorSync profiles

ColorHCFR - Free Video Projector/Monitor Calibration Software