Free Jung Cognitive Functions Test

Yes. It is free to take, and the summary is free: your 8 function scores, your best-fit type with the runner-up and third, and how we worked it out. The full report is optional, a one-time payment with no subscription, and you can ask for a full refund within 3 days. See our Refund Policy.

No. This is an independent test of Jung’s cognitive functions, not the MBTI® assessment, and Insight Metrics is not affiliated with the Myers & Briggs Foundation. MBTI, Myers-Briggs and Myers-Briggs Type Indicator are trademarks or registered trademarks of the Myers & Briggs Foundation in the United States and other countries.

“Jung personality test” usually means a four-letter type test based on Jung’s ideas, also called a Jung typology test or a Jungian personality test. Ours is different: it scores Jung’s eight functions one by one. If you want a four-letter Jung personality test, free and quick, take our 16-type personality test (60 questions); for the functions, you are in the right place.

Yes, in the sense that it is built on Carl Jung’s theory of psychological types: the eight functions come straight from his 1921 book. It is not endorsed by Jung’s estate or by any Jung foundation, and the 16-type stacks it uses were developed by later type writers. Think of it as a modern Jung type test focused on the functions.

Jung described eight types in 1921, each led by one function in one attitude: the extraverted and introverted thinking, feeling, sensing and intuition types. The 16 four-letter types came later, when Katharine Briggs and Isabel Briggs Myers added the judging and perceiving preference. Read about all of them in our guide to the 16 personality types.

No. The 12 archetypes popular in branding, such as the Hero and the Caregiver, are a later simplification of Jung’s ideas about recurring images in human stories. Personality types describe how you take in information and make decisions. This test is about types and functions only; it doesn’t assign you an archetype.

No. Despite the name, a cognitive functions test in Jung’s sense measures personality preferences, not memory, attention or how well your brain works. There are no right or wrong answers, and the result says nothing about intelligence or health. If you are concerned about memory or concentration, please talk to a doctor.

Percentiles need norms: scores from a large, known group of people who answered the same questions. No published norms exist for 8-function scores, and our test is new, so we show your scores on a 0–100 scale instead. Compare your functions with each other; we will only add comparisons with other people once we have real data.

Then we don’t name a type. Mostly “Sometimes”, the same answer almost everywhere, a long run of one answer, scores that sit very close together, answers that don’t hang together, or racing through the test all mean any type would be a guess. You still see your 8 scores, with a note and a suggestion to retake when you have 10 quiet minutes.

Yes, a little. Answers shift with mood and context, and close calls can flip between the two types on a retake. Scores that stay similar across two or three tries are the ones to trust most. Answer for an ordinary week each time, and compare your 8 scores rather than only the type.

The test is written for adults. Teenagers can take it with a parent or teacher, as long as they read the result as one view of a personality that is still developing. It is a tool for reflection, not a basis for school, career or health decisions.

Yes. Your answers are scored on our server, your result has a private link, and we never sell your details. You can read exactly what we store and why in our Privacy Policy.

The full report compares your measured order with your best-fit type’s stack, explains all 8 functions at your level with a habit for each, and describes your lead pair, your functions at work and with people, your least-used function under pressure and your type’s loop. It ends with six questions to settle best fit vs runner-up, a 30-day plan and a PDF copy.

It measures the eight Jungian cognitive functions that MBTI® type theory builds on, so many people call it an MBTI cognitive function test. It is our own independent test, not the official MBTI® assessment: you get a score for each function and the 16-type pattern that fits them best. MBTI and Myers-Briggs are trademarks of the Myers & Briggs Foundation; we are not affiliated.

In Jungian type theory, a function stack is the order in which a type uses four of the eight cognitive functions: dominant, auxiliary, tertiary and inferior. For example, the INFJ stack is Ni, Fe, Ti, Se. The dominant is the most trusted and practised; the inferior is the least developed. Our test scores all eight functions first, then compares your pattern with each type's stack.

A loop is a popular idea from type communities, not a research finding. It describes someone who leans on their dominant and tertiary functions and skips the auxiliary, for example an INFJ using intuition and logic while avoiding feeling for other people. It is often linked to stress. Our report does not label loops, but it shows when your measured order differs from your type's model stack.

A good test scores each of the eight functions on its own instead of forcing pairs against each other, uses clear everyday statements, and says when two types fit almost equally well. It should explain its method and limits rather than promise a perfect answer. Ours uses 64 statements written from Jung's original descriptions, a published stack formula, a close-call rule and an unclear-answers check.