SQAT is an open-source repository of MATLAB codes containing the implementation of key metrics for quantitative sound quality analysis. With SQAT you can conduct quick quantitative sound quality analysis on any calibrated input sound file, in Pascal units. To give a transparent indication of how close the implementations are from the original models, we provide a detailed set of verification routines. Moreover, a number of example codes and exemplary sound files is provided in order to facilitate the initial use of the algorithms.