Oson Studio · Free IQ test

Test your intelligence

A comprehensive intelligence test across 10 areas: logic, math, vocabulary, memory, spatial reasoning and more. With results, detailed charts and a certificate.

10 areas1000+ questionsCertificate
LIVE DEMO

Continue the sequence:

Correct! Sharp logic.

Special modes

IQ Marathon

1000 questions, 25 stages

40 questions and 45 minutes per stage. It starts easy and gradually gets harder. Finish a stage to earn a medal and unlock the next one. How far will you get?

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FreeNo sign-up4 medals
60 seconds

Blitz

A race against the clock: give as many correct answers as you can in 60 seconds. After each answer the next question appears automatically.

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CAT

Adaptive test

Questions grow with you: answer correctly and they get harder, make a mistake and they get easier. A smart mode for a more accurate score.

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Areas, test separately

Psychological tests

16 Types (MBTI)

Identifies your personality as one of 16 types.

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Big Five (OCEAN)

5 core traits, the most scientifically grounded model.

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4 Temperaments

Choleric, sanguine, phlegmatic or melancholic.

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Emotional Intelligence (EQ)

The ability to recognize and manage emotions.

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Career Interest

Which field suits you (Holland system).

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Enneagram

Which of the 9 deep personality types is yours.

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Introvert / Extravert

Do you draw energy from people or from solitude?

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Love Languages

How you express and receive love.

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Stress Level

Assess your current level of tension.

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Psychological tests are popular-science tools for self-knowledge, not a medical diagnosis. Fresh questions appear every time.

Daily challenge

You choose the difficulty level

Easy

For beginners, simple, easy-to-follow questions.

Medium

Moderate difficulty, suitable for most people.

Hard

Challenging, requires deep analysis and a high level.

When you start any area or the full test, you pick the level, the questions adapt to it. Our bank is huge and never repeats on each visit: you meet fresh questions every time.

How is IQ calculated?

The final IQ score is based on the number of correct answers weighted by question difficulty. Harder questions give more points; speed only adds a small adjustment (±6 points, never overriding accuracy), so even a slow but correct answer earns a high score. The result is shown on a 55–160 range, with the average around 100.

The «Reaction speed» section is a separate measure and is not converted into an IQ score, it is only shown in milliseconds (ms). We also avoid metrics like «mental age» that can be misleading without knowing the user's real age.