MBTI Calculator - Version 2.0.0 The MBTI Calculator implements the Keirsey Sorter questionnaire developed by David Keirsey for assessing Myers-Briggs personality profiles (MBTI types). You can save and load questionnaires, view your results graphically, print results, and even get or create pluggable language packs to administer the test in multiple languages! Easy to use, fun, and friendly. (NOTE: Not an officially licensed MBTI test -- for entertainment and educational use only.)