Many sites offer free online personality tests, but are not accredited by professionals with the ability to determine the tests' validity. The Meyers-Briggs foundation suggests taking personality inventories that are administered by a professional. Visit the MBTI master practitioner referral website to get a list of local, qualified providers.
One site offering a free unaccredited Myer-Briggs personality test is HumanMetrics.com. The site has easy-to-follow instructions and no hidden fees, plus the site does not require registration. Upon completion of the questionnaire, results are returned with a complete explanation of traits, suggested career paths and more.
PersonalityPathways.com is another option. This self-scoring inventory approximates Myers-Briggs types without making exaggerated claims. After determining the four-letter MBTI score, the site provides links that explore traits and characteristics revealed by completing the inventory.