The 16 Personality Types
Four groups, sixteen types. Find yours below — or take the free test.
Take the Free TestAnalysts
Rational and independent, driven by logic and big ideas.
Diplomats
Empathetic and idealistic, guided by values and people.
Campaigner
ENFP-A / ENFP-T
Energetic, enthusiastic, creative, sociable, optimistic, spontaneous
Protagonist
ENFJ-A / ENFJ-T
Charismatic, inspiring, empathetic, caring, decisive
Advocate
INFJ-A / INFJ-T
Empathetic, idealistic, insightful, caring, devoted, thoughtful
Mediator
INFP-A / INFP-T
Empathetic, creative, idealistic, gentle, reflective, kind
Sentinels
Practical and dependable, at home with order and duty.
Defender
ISFJ-A / ISFJ-T
Loyal, caring, practical, responsible, supportive, attentive
Consul
ESFJ-A / ESFJ-T
Warm, sociable, caring, responsible, loyal, organized
Executive
ESTJ-A / ESTJ-T
Organized, responsible, decisive, practical, efficient, confident
Logistician
ISTJ-A / ISTJ-T
Practical, responsible, organized, meticulous, disciplined
Explorers
Spontaneous and hands-on, quick to adapt and act.
Entertainer
ESFP-A / ESFP-T
Energetic, playful, sociable, spontaneous, fun-loving, charming
Virtuoso
ISTP-A / ISTP-T
Practical, adventurous, independent, resourceful
Adventurer
ISFP-A / ISFP-T
Creative, flexible, sensitive, spontaneous, artistic, playful
Entrepreneur
ESTP-A / ESTP-T
Energetic, bold, practical, adventurous, persuasive, confident
What the Four Letters Mean
Every personality type is a four-letter code, and each letter is one side of a preference pair. Together they describe where you get your energy, how you take in information, how you make decisions, and how you organize your life.
Extraversion or Introversion
Where your energy comes from — engaging with people and activity, or reflecting and recharging alone.
Sensing or Intuition
How you take in information — concrete facts and present details, or patterns, meanings, and possibilities.
Thinking or Feeling
How you decide — weighing logic and consistency, or weighing people and values.
Judging or Perceiving
How you run your outer life — planned and settled, or open and adaptable.
How to Find Your Personality Type
Take the free 16 personalities test: 56 questions, about 12 minutes, instant results with no signup. You'll get your four-letter type and a full profile — then come back here to explore how it relates to the other fifteen.
Take the Free Personality TestPersonality Types FAQ
What are the 16 personality types?
They are the sixteen combinations of four preference pairs — Extraversion/Introversion, Sensing/Intuition, Thinking/Feeling, Judging/Perceiving — described by Isabel Myers and Katharine Briggs, building on Carl Jung's theory of psychological types. Each type is written as a four-letter code such as INFJ or ESTP.
What do the four letters in a personality type mean?
Each letter is one side of a pair: E or I for where you get energy, S or N for how you take in information, T or F for how you make decisions, and J or P for how you organize your outer life. INTJ, for example, means Introversion, Intuition, Thinking, Judging.
Why are the types grouped into Analysts, Diplomats, Sentinels, and Explorers?
The four groups share the middle two letters that shape temperament most: Analysts (NT) lean rational and strategic, Diplomats (NF) empathetic and idealistic, Sentinels (SJ) practical and dependable, Explorers (SP) spontaneous and hands-on. Types within a group tend to approach life in recognizably similar ways.
What is the rarest personality type?
INFJ is usually cited as the rarest, at around 1–2% of the population, with INTJ and ENTJ also uncommon. Estimates vary by study and country, so treat the figures as approximate.
What is the most common personality type?
ISFJ and ESFJ are usually the most common, each around 12–13% of people in large samples, followed by ISTJ. Sensing types as a whole outnumber Intuitive types.
Can my personality type change?
Your core preferences tend to be stable, but how strongly you express them can shift with age, role, and circumstance — and a borderline preference can flip on a retest. If your results change, the letters that moved are the ones you sit near the middle on.
Is this the same as the MBTI?
It uses the same sixteen-type framework and four preference pairs described in Myers-Briggs theory, so types are directly comparable. The MBTI® itself is a separate, trademarked assessment; our test is an independent, free one.