Sixteen Types
The Jungian four-letter type, MBTI-style
Free, no account needed.

Are you recharged by people or by solitude? Do you trust facts or patterns, logic or values, plans or possibilities? This test measures the four preferences behind the familiar four-letter types, shows which of the sixteen fits you best and tells you how clear each preference is.
Answer as you usually are when nobody expects anything of you, not as you behave at work or as you would like to be. Both sides of every question are healthy ways of being human: there are no better letters.
What it measures
Energy
Introversion ↔ Extraversion
Where you turn for energy and how you process experience: inward, toward reflection and depth, or outward, toward people and action.
Introversion: You recharge in solitude or close company, think before you speak and prefer depth to breadth. Not shyness: a preference for the inner world.
Extraversion: You recharge through people and activity, think by talking and engage readily with what is going on around you.
Perception
Sensing ↔ Intuition
What kind of information you notice and trust first: concrete facts and experience, or patterns, meanings and possibilities.
Sensing: You notice what is actually there, trust experience and practical detail, and build on what has been shown to work. Not dullness: a love of the real.
Intuition: You notice patterns and implications, trust hunches and theory, and are drawn to what could be. Not flightiness: a love of the possible.
Decisions
Thinking ↔ Feeling
What you weigh most when you decide: impersonal logic and consistency, or values and the effect on the people involved.
Thinking: You step back, analyse cause and effect and aim for decisions that are consistent and defensible. Not coldness: fairness through principle.
Feeling: You step in, weigh what matters to the people involved and aim for decisions that honour values and relationships. Not softness: fairness through understanding.
Structure
Judging ↔ Perceiving
How you like to run your outer life: settled, planned and decided, or open, flexible and responsive.
Judging: You like to decide, plan and finish, and you feel freer once things are settled. Not rigidity: a love of closure and follow-through.
Perceiving: You like to keep options open, adapt as you go and gather more information before committing. Not laziness: a love of responsiveness.
Possible results
About this test
In Psychological Types (1921) the Swiss psychiatrist Carl Jung proposed that people differ in their basic attitude, introverted or extraverted, and in the mental functions they favour: two ways of perceiving (sensation and intuition) and two ways of judging (thinking and feeling). From the 1940s Katharine Cook Briggs and her daughter Isabel Briggs Myers turned his ideas into a questionnaire and added a fourth preference, judging versus perceiving, for how you deal with the outer world. The combinations give the sixteen four-letter types. Myers-Briggs Type Indicator and MBTI are trademarks of the Myers-Briggs Company; this is an independent test inspired by Jung's typology, with original questions and descriptions, and is not affiliated with or endorsed by the company.
The test measures each preference with statements, sliders and forced choices. Each axis gets a score from 0 to 100; your letter is the side of the midpoint you fall on (an exact tie is shown as X and, by the usual convention, counted as I, N, F or P), and the ranking shows how close your four scores are to the typical profile of each type.
Know the science. Researchers find that these preferences behave like continuous traits, with most people near the middle, rather than two clean categories, and they overlap with four of the Big Five traits (extraversion, openness, agreeableness and conscientiousness). That is why many people who retake a type test within weeks get at least one different letter, usually on an axis where they were close to the middle. Read your letters as a starting point for reflection, note how clear each one is, and read the neighbouring types too. Scores are relative to the answer range, not to population norms.
References
- Jung, C. G. (1921/1971). Psychological Types. Collected Works, Vol. 6. Princeton University Press.
- Myers, I. B. with Myers, P. B. (1980/1995). Gifts Differing: Understanding Personality Type. Consulting Psychologists Press; reissued by Davies-Black.
- McCrae, R. R. & Costa, P. T. (1989). Reinterpreting the Myers-Briggs Type Indicator from the perspective of the five-factor model of personality. Journal of Personality, 57(1), 17-40.
- Pittenger, D. J. (2005). Cautionary comments regarding the Myers-Briggs Type Indicator. Consulting Psychology Journal, 57(3), 210-221.
- Quenk, N. L. (2002). Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality. Davies-Black.
For self-reflection and curiosity, not diagnosis. Scores describe how you answered, relative to the possible range; they are not compared with population norms.
All questions, type names and descriptions were written for this suite. Where a test is inspired by a branded instrument (the MBTI®, the five love languages®, DISC assessments, the Political Compass), it is an independent test of the same idea and is not affiliated with or endorsed by the owners of those names.
Sixteen Types
About 9 minutes · 72 questions
More tests in this area
- Enneagram
Nine types, nine core motivations
95 questions · About 13 minutes
- Twelve Archetypes
The Jungian story you are living
82 questions · About 11 minutes
- The Four Temperaments
Sanguine, Choleric, Melancholic or Phlegmatic?
28 questions · About 3 minutes
- Cognitive Functions
The eight Jungian functions behind the four letters
64 questions · About 9 minutes















