16 MBTI Personality Types

MBTI combines 4 dimensions — E/I, S/N, T/F, J/P — into 16 types: ENFJ, ENFP, ENTJ, ENTP, ESFJ, ESFP, ESTJ, ESTP, INFJ, INFP, INTJ, INTP, ISFJ, ISFP, ISTJ, and ISTP. Each has distinct traits, strengths, and compatibility patterns.

Yes, DOUNO's MBTI test is completely free with no sign-up required. The 48-question kids & teen version provides 16-type precision diagnosis plus parenting guide, learning style, and parent-child compatibility.

MBTI compatibility analyzes how two personality types interact. Each type page shows the best-matched types and types that need extra communication effort.