Computerized adaptive testing (CAT) offers an efficient and highly accurate method for estimating examinees' abilities. In this article, the free version of Concerto Software for CAT was reviewed, dividing our evaluation into three sections: software implementation, the Item Response Theory (IRT) features of CAT, and user experience. Overall, Concerto is an excellent tool for researchers seeking to create computerized adaptive (or non-adaptive) tests, providing a robust platform with comprehensive IRT capabilities and a user-friendly interface.