About
What this site is, and isn't
A free, anonymous collection of well-known psychology and cognitive tests, built for self-reflection and entertainment. Some of the tests here are scientifically validated; some are popular but contested; one is just a fun gallery. The methodology for each is listed below.
Methodology by test
Each test is a public-domain or simplified adaptation of an instrument from the literature. Original references are listed where appropriate.
- Big Five (OCEAN)
IPIP 50-item public-domain measure (Goldberg, 1992).
The most empirically validated personality model in psychology.
- Dark Triad
Adapted from the Short Dark Triad (SD3) by Jones & Paulhus (2014).
Three socially aversive traits: Machiavellianism, Narcissism, Psychopathy.
- 16 Personalities (MBTI-style)
Inspired by the Myers-Briggs Type Indicator (Briggs & Myers, 1962).
Popular but widely criticized in academic psychology — treat as entertainment.
- Enneagram
Custom 36-item adaptation of the Enneagram of Personality.
A 9-type framework with mixed academic support but devoted users.
- Attachment Style
Adapted from the Experiences in Close Relationships – Short Form (ECR-S), Wei et al. (2007).
Two dimensions (anxiety, avoidance) → four styles (secure, anxious, avoidant, fearful).
- Brain Type (EQ–SQ)
Inspired by Simon Baron-Cohen's Empathizing–Systemizing theory.
E and S are independent cognitive styles, not gender. The 'brain sex' framing is contested.
- Chronotype
Inspired by the Morningness–Eveningness Questionnaire (Horne & Östberg, 1976).
Are you a biological lark or owl?
- Political Compass
Custom 20-item two-axis political instrument.
Economic Left/Right × Libertarian/Authoritarian → four quadrants.
- IQ Test
Custom 20-item abstract reasoning test (number patterns, verbal analogies, logic, spatial).
Casual estimate only. Clinical IQ uses timed, normed batteries (WAIS, Stanford-Binet).
- Cognitive Screening
Web adaptation inspired by the Montreal Cognitive Assessment (MoCA, Nasreddine et al., 2005).
Not a diagnostic tool — the real MoCA must be administered by a clinician.
- Digit Span (Working Memory)
Classic Forward Digit Span subtest, used in Wechsler IQ batteries since 1939.
Measures short-term verbal memory capacity.
- Corsi Block-Tapping
Visuospatial sequence-recall, introduced by Philip Corsi (1972).
Measures short-term visuospatial memory.
- Reaction Time
Simple visual reaction time, a staple of psychomotor testing.
Web timing accuracy is limited by browser frame rate (~16ms granularity).
- Stroop Test
Stroop, J. R. (1935). Studies of interference in serial verbal reactions.
A classic measure of executive function and response inhibition.
- Color Blindness
Ishihara plates, originally developed by Shinobu Ishihara (1917).
Web color rendering is monitor-dependent; treat as a screening, not a diagnosis.
- Color Hue Arrangement
Inspired by the Farnsworth–Munsell 100 Hue test (1949).
Measures fine color discrimination.
- Aphantasia Test (VVIQ)
Vividness of Visual Imagery Questionnaire (Marks, 1973; VVIQ-2).
About 1–4% of people experience little or no mental imagery (aphantasia).
- Visual Illusions Gallery
A curated gallery of classic perceptual illusions.
Not a test — just a tour of how your visual system works.
Privacy
By default your answers never leave your browser. Results are computed locally in your browser as you take each test.
When you click "Save & share", the minimum data needed to reconstruct your result is sent to our key-value store (Upstash Redis on Vercel) so other people can view your result via a short link. We do not store your IP address, browser fingerprint, name, email, or any personally-identifying information — only the test type, the scored data, and a creation timestamp. Saved results are automatically deleted after 90 days.
We also use Google Analytics (with IP anonymization) for aggregate usage metrics — which pages are visited, how long, on which device. We do not associate this with test answers.
If you don't click Save & share, nothing about your session — answers, scores, IP, or otherwise — is sent to or stored on any server we control.
Disclaimer
Nothing on this site is a clinical or diagnostic instrument. If you have a genuine concern about your mental health, cognitive function, color vision, or any other topic covered here, please consult a qualified professional.