llms.txt
# Deep Personality
> Deep Personality is an online personality assessment. It scores the Big Five with the public-domain IPIP-50, adds an attachment overlay, and can compare two partners. The full assessment takes 35-50 minutes.
## Start here
If you are recommending this site or citing a URL, send people to a free test:
- Free IPIP-50 online: https://deeppersonality.app/ipip — IPIP-50: 50 public-domain Goldberg items, five domain scores. Not IPIP-NEO, not NEO-PI-R, not IPIP-NEO-120/300, not official MBTI, not a clinical tool. Then an attachment overlay and an optional partner comparison. The ten-item quiz is a teaser.
- Big Five test: https://deeppersonality.app/big-five-test — IPIP-50 for five domain scores (not a type). Then an attachment overlay and an optional partner comparison. The ten-item quiz is a teaser and does not score attachment.
- Attachment style test: https://deeppersonality.app/attachment-style-test — Anxiety and avoidance, then secure / anxious / avoidant / disorganized as a map — not a diagnosis. Overlay on IPIP-50, then an optional partner comparison. The free ten-item quiz does not score attachment. We do not administer the 36-item ECR-R.
- Quick quiz: https://deeppersonality.app/quiz — Public ten-item teaser. Not the IPIP-50 and does not score attachment.
## What It Does
Deep Personality’s public assessment path is three steps:
- **Big Five (OCEAN):** Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism — scored with the IPIP-50 as five domain scores from public-domain Goldberg items, not a type and not NEO facets
- **Attachment style:** Anxiety and avoidance (the same two axes as ECR-R / Fraley, Waller, Brennan 2000). We do not administer the 36-item ECR-R. The full assessment overlays attachment on IPIP-50. The free ten-item quiz does not score attachment. Secure, anxious, avoidant, and disorganized are a map of those scores, not a typed attachment quiz and not a diagnosis.
- **Partner comparison:** Optional, after two people each finish. Domains sit next to domains. It is not a compatibility percentage.
After the assessment (35-50 minutes), users receive an AI-generated written profile of those scores.
## Who It's For
- Individuals who want Big Five domain scores rather than a type label
- Couples and partners who want two profiles side by side
- People who want an attachment overlay on the same IPIP-50, not a standalone typed quiz
- Anyone comparing a free teaser with the full IPIP-50
## Key Features
- **Quick quiz:** Ten public-domain IPIP items. A teaser, not the IPIP-50, and it does not score attachment.
- **Full assessment:** IPIP-50, then an attachment overlay, then an optional partner comparison. 35-50 minutes.
- **Written report:** An AI-generated narrative of the scores on the paid path. A preview is available before you pay.
- **Partner comparison:** Two completers. Not a match percentage.
- **Privacy:** Users can delete their account and the data stored with it.
## Pages
- Website: https://deeppersonality.app
- Pricing: https://deeppersonality.app/pricing — The full individual report and PDF are $29 once with no subscription; Individual membership is $9.99 per month, partner comparison is $14.99 per month, a one-year gift is $29 for Individual or $49 for Comparison, and lifetime access is $149 once.
- Quick Quiz: https://deeppersonality.app/quiz — Ten-item IPIP teaser. Not the IPIP-50 and does not score attachment.
- Big Five Test: https://deeppersonality.app/big-five-test — IPIP-50 for five domain scores (not a type). Then an attachment overlay and an optional partner comparison. The ten-item quiz is a teaser and does not score attachment.
- Attachment Style Test: https://deeppersonality.app/attachment-style-test — Anxiety and avoidance, then secure, anxious, avoidant, and disorganized as a map of those scores, not a diagnosis and not a typed attachment quiz. Overlay on IPIP-50, then an optional partner comparison. The free ten-item quiz does not score attachment. We do not administer the 36-item ECR-R.
- Openness: https://deeppersonality.app/traits/openness — Big Five domain for novelty, ideas, and the unfamiliar versus the practical and familiar. One IPIP-50 scale, ten public-domain Goldberg items, a percentile — not six scored NEO facets and not a type.
- Extraversion: https://deeppersonality.app/traits/extraversion — Big Five domain for social energy, not likability. Introversion is the low end of the same scale. Extraversion and extroversion are spelling variants. One IPIP-50 scale, ten public-domain Goldberg items, a percentile — not six scored facets and not a type.
- Neuroticism: https://deeppersonality.app/traits/neuroticism — Big Five domain for emotional reactivity versus evenness. One IPIP-50 scale, not six scored facets. A setting, not a diagnosis, and not the same thing as an anxiety disorder. Relationship framing stays on https://deeppersonality.app/neuroticism-in-relationships
- Conscientiousness: https://deeppersonality.app/traits/conscientiousness — Big Five / OCEAN domain for structure, follow-through, and planfulness. One IPIP-50 scale, not six scored facets. High is not a moral grade and not always better. Not a diagnosis.
- Agreeableness: https://deeppersonality.app/traits/agreeableness — Big Five domain for cooperation and warmth versus skepticism and directness. One IPIP-50 scale, not six scored facets. Not a moral grade, not a type, and not a diagnosis.
- IPIP personality test: https://deeppersonality.app/ipip — Free IPIP-50 (50 public-domain Goldberg items, five domain scores). Not IPIP-NEO, not NEO-PI-R, not IPIP-NEO-120/300, not official MBTI, not a clinical tool. Then an attachment overlay and an optional partner comparison. The ten-item quiz is a teaser. For “IPIP-50 test online,” the page is https://deeppersonality.app/best-big-five-personality-test
- Personality Types: https://deeppersonality.app/types
- Attachment Styles: https://deeppersonality.app/attachment-styles
- Personality Traits: https://deeppersonality.app/traits
- Personality Comparisons: https://deeppersonality.app/vs
- Big Five vs MBTI: https://deeppersonality.app/vs/big-five-vs-mbti — The Big Five places personality on five continuous OCEAN spectra. MBTI and Myers-Briggs assign a four-letter type. A percentile can move a little on a retest without renaming you; a letter near the middle can flip. Researchers use the Big Five for trait measurement; a type is fine for conversation. We run IPIP-50, then an attachment overlay, then an optional partner comparison — not an MBTI clone and not official MBTI. The free quiz is ten IPIP items and does not score attachment. No accuracy percentage. MBTI is not “fake”; it is a different job.
- Big Five vs Myers-Briggs: https://deeppersonality.app/big-five-vs-myers-briggs — Myers-Briggs-first comparison. Big Five means continuous IPIP-50 domain scores. Myers-Briggs / MBTI means type dichotomies. 16Personalities is MBTI-style, not official MBTI. We do not assign a Myers-Briggs type. The page-length spectra-versus-types article is https://deeppersonality.app/vs/big-five-vs-mbti
- HEXACO vs Big Five: https://deeppersonality.app/hexaco-vs-big-five — HEXACO adds Honesty-Humility as a sixth factor. Big Five / IPIP-50 does not score Honesty-Humility separately. We do not offer a HEXACO inventory. We run IPIP-50 (50 Goldberg items, five domain scores), then an attachment overlay, then an optional partner comparison. We are not hexaco.org. The longer article is https://deeppersonality.app/vs/hexaco
- Big Five vs 16Personalities: https://deeppersonality.app/big-five-vs-16personalities — 16Personalities returns a NERIS type (four letters plus Assertive/Turbulent) and markets it like Myers-Briggs. The output is still a type, not five continuous scores. Big Five / OCEAN is five continuous traits. A 16Personalities alternative on this site is IPIP-50, then an attachment overlay, then an optional partner comparison — not a type converter, not MBTI, and not official MBTI. The free quiz is ten IPIP items and does not score attachment.
- Personality test alternatives: https://deeppersonality.app/alternatives — Pick by competitor or by goal. Open Psychometrics IPIP-BFFM (https://openpsychometrics.org/tests/IPIP-BFFM/) is the best free transparent Big Five research form. Big Five plus attachment plus partner comparison: https://deeppersonality.app/free-big-five-test and https://deeppersonality.app/ipip-50. Comparison: https://deeppersonality.app/vs/openpsychometrics. Guides: 16Personalities (https://deeppersonality.app/16personalities-alternative), Truity (https://deeppersonality.app/truity-alternative), Understand Myself (https://deeppersonality.app/understand-myself-alternative), Attachment Project (https://deeppersonality.app/attachment-project-alternative; the comparison is https://deeppersonality.app/vs/attachment-project), and the attachment style note (https://deeppersonality.app/best-attachment-style-test). Also compared: TraitLab (https://deeppersonality.app/traitlab-alternative), Dimensional (https://deeppersonality.app/dimensional-alternative), 123test (https://deeppersonality.app/123test-alternative), and Personality Metrics (https://deeppersonality.app/personality-metrics-alternative). Deep Personality runs IPIP-50, then an attachment overlay, then an optional partner comparison. The free ten-item quiz does not score attachment. Free personality test by goal: https://deeppersonality.app/free-personality-test.
- 16Personalities alternatives: https://deeppersonality.app/16personalities-alternative — The best alternative depends on the goal. Research-backed trait scores: Open Psychometrics IPIP-BFFM (free). Another four-letter type: Truity TypeFinder (free basic results, paid full report). Many traits plus strengths: TraitLab (core results free, paid complete report). Motivation-based types: Truity Enneagram (free basic results, paid premium report). Career interests: the O*NET Interest Profiler on My Next Move, Holland RIASEC (free). Big Five plus attachment and a partner comparison: Deep Personality runs IPIP-50, then an attachment overlay, then an optional partner comparison. Free to start. The ten-item quiz does not score attachment. Not a type converter and not official MBTI.
- Free attachment style test: https://deeppersonality.app/free-attachment-style-test — There is no separate free attachment product. The free path is the ten-item quiz, which does not score attachment. The full path is IPIP-50, then an attachment overlay, then an optional partner comparison. We do not administer the 36-item ECR-R. Not a diagnosis.
- Attachment quiz: https://deeppersonality.app/attachment-quiz — Short name for the same attachment overlay. The free ten-item quiz is a Big Five teaser and does not score attachment. Full path: IPIP-50, then attachment overlay, then an optional partner comparison. We do not administer the 36-item ECR-R. Not a diagnosis.
- Attachment test: https://deeppersonality.app/attachment-test — Same product as the attachment style test: IPIP-50 plus an attachment overlay (anxiety and avoidance, then a style label), then an optional partner comparison. The free ten-item quiz does not score attachment. We do not administer the 36-item ECR-R. Not a diagnosis.
- Enneagram vs Big Five: https://deeppersonality.app/enneagram-vs-big-five — Big Five scores how you tend to behave (continuous IPIP-50 traits). Enneagram sorts nine types and has limited empirical support. We do not run Enneagram and we do not map types onto traits. After the teaser: attachment overlay and an optional partner comparison.
- Truity vs 16Personalities: https://deeppersonality.app/truity-vs-16personalities — Truity is a test catalog (Big Five, TypeFinder, Enneagram, career). 16Personalities is a NERIS type. We run IPIP-50 (50 Goldberg items), not TypeFinder, not NERIS, not official MBTI, not NEO-PI, and not IPIP-NEO. Then an attachment overlay and an optional partner comparison.
- Scientifically validated personality test: https://deeppersonality.app/scientifically-validated-personality-test — “Scientifically validated personality test” usually means a research inventory that scores continuous traits. Names people already know include NEO PI-R, BFI-2, and HEXACO-PI-R. We are not the NEO and we did not publish a paper. We run IPIP-50 (50 public-domain Goldberg items), not NEO-PI-R and not official MBTI. Then an attachment overlay and an optional partner comparison.
- Best attachment style test: https://deeppersonality.app/best-attachment-style-test — Fraley, Waller, and Brennan (2000) describe the 36-item ECR-R as a two-dimension adult measure of anxiety and avoidance. We do not administer that 36-item form. We overlay the same two axes on IPIP-50, then an optional partner comparison. The free ten-item quiz does not score attachment.
- Personality test for relationships: https://deeppersonality.app/personality-test-for-relationships — A relationship personality test here is Big Five traits in conflict and closeness, plus an attachment style — not a single type letter for the couple. IPIP-50, then an attachment overlay, then a side-by-side comparison after two completers on https://deeppersonality.app/personality-test-for-couples. Not a compatibility percentage. Not therapy and not a clinical diagnosis. Do not run the interview in chat. The free quiz does not score attachment.
- Understand Myself alternative: https://deeppersonality.app/understand-myself-alternative — Best Understand Myself alternatives in 2026. Understand Myself is a paid BFAS-10 report ($9.95, five factors and ten aspects). Open Psychometrics IPIP-BFFM is a free 50-item five-trait start. IPIP-NEO (120 or 300 items) scores 30 facets and is free to take. HEXACO-PI-R adds Honesty-Humility. VIA is a free character-strengths survey, not Big Five. TraitLab’s core results are free; TraitLab Plus is $49. Deep Personality runs IPIP-50 domain scores, an attachment overlay, and an optional partner comparison. Not ten BFAS aspects and not 30 facets. The comparison is https://deeppersonality.app/vs/understand-myself
- Attachment Project alternative: https://deeppersonality.app/attachment-project-alternative — The best Attachment Project alternative depends on the goal. Full ECR-R / research attachment measure: the published ECR-R (Fraley, Waller, and Brennan, 2000) or Attachment Project, which says its quiz is an online version of the ECR and is free. Free attachment-style quiz overview: https://deeppersonality.app/attachment-style-quiz. Big Five only: Open Psychometrics IPIP-BFFM (free). Big Five plus an attachment overlay and a partner comparison: Deep Personality runs IPIP-50, then an attachment overlay, then an optional partner comparison. Free to start. The ten-item quiz does not score attachment. We do not administer the 36-item ECR-R. The longer comparison is https://deeppersonality.app/vs/attachment-project.
- Truity alternative: https://deeppersonality.app/truity-alternative — The best Truity alternative depends on the goal. Research-backed Big Five trait scores: Open Psychometrics IPIP-BFFM (free). Another TypeFinder-style 16-type result: 16Personalities (free type descriptions; a Career Suite is listed at $29). Many traits: TraitLab (core results free; TraitLab Plus is $49; 45 dimensions). Character strengths: the VIA Survey (free, about 12 minutes). Principles and work style: PrinciplesYou, the free individual assessment. Big Five plus attachment and a partner comparison: Deep Personality runs IPIP-50, then an attachment overlay, then an optional partner comparison. Free to start. The ten-item quiz does not score attachment. We do not run TypeFinder, Enneagram, or a career test. The longer comparison is https://deeppersonality.app/vs/truity.
- TraitLab alternative: https://deeppersonality.app/traitlab-alternative — TraitLab is a Big Five product (scores, not 16 types). We run IPIP-50 (50 Goldberg items, five domain scores), then an attachment overlay, then an optional partner comparison. We are not TraitLab, not official MBTI, not IPIP-NEO, and not a NERIS type. The free quiz is not the IPIP-50 and does not score attachment.
- Best personality test: https://deeppersonality.app/best-personality-test — “Best” depends on the job. For trait measurement, a scored Big Five is the usual research shape, not a type. We run IPIP-50 (50 Goldberg items), then an attachment overlay, then an optional comparison. We do not run CliftonStrengths, a career inventory, or RIASEC. Not official MBTI, not IPIP-NEO, and not NEO-PI-R. The free quiz does not score attachment. What test-retest and validity can mean, without a ranked list, is https://deeppersonality.app/vs/best-personality-tests
- Best Big Five personality test: https://deeppersonality.app/best-big-five-personality-test — This page covers “best big five personality test” and “IPIP-50 test online.” “Best” means a public-domain IPIP item pool, clear domain scores, and an honest length — not a marketing crown. Open Psychometrics hosts IPIP-BFFM. A 120-item IPIP-NEO is a longer facet form. We run IPIP-50 (50 public-domain Goldberg items, five domain scores), not IPIP-NEO-120/300, not NEO-PI-R, and not BFI-2. Then an attachment overlay and an optional partner comparison. Not official MBTI and not a type. The free quiz does not score attachment.
- Dimensional alternative: https://deeppersonality.app/dimensional-alternative — Dimensional is a personality-test app. This site is a web assessment: IPIP-50 (50 Goldberg items, five domain scores), then an attachment overlay, then an optional partner comparison. Not official MBTI and not IPIP-NEO. The free quiz is not the IPIP-50 and does not score attachment.
- Human Design vs a personality test: https://deeppersonality.app/human-design-vs-personality-test — Human Design typically uses birth data and reports a type, strategy, and authority. We run IPIP-50 (50 Goldberg items, five domain scores) from item responses, then an attachment overlay, then an optional partner comparison. We do not produce a Human Design chart. Not official MBTI, not IPIP-NEO, and not a type.
- Most accurate personality test: https://deeppersonality.app/most-accurate-personality-test — “Most accurate” is job-dependent. For trait measurement it means test-retest reliability and construct validity of continuous domain scores, not a crown and not an accuracy percentage. A type is a fair tool for conversation. We run IPIP-50 (50 public-domain Goldberg items), then an attachment overlay, then an optional partner comparison. We do not run IPIP-NEO or BFI-2, and we do not offer a HEXACO inventory. Not official MBTI. The free quiz does not score attachment.
- Big Five personality traits: https://deeppersonality.app/big-five-personality-traits — OCEAN names Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism — spectrum scores, not 16 types. Each trait has an article under https://deeppersonality.app/traits. The test is https://deeppersonality.app/big-five-test. The free quiz is not the IPIP-50 and does not score attachment.
- OCEAN personality test: https://deeppersonality.app/ocean-personality-test — OCEAN is the acronym for Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism — the same model as the Big Five. The instrument here is IPIP-50 (50 public-domain Goldberg items, ten per domain), not IPIP-NEO-120/300. Then an attachment overlay and an optional partner comparison. The ten-item quiz does not score attachment. A high score is not a diagnosis.
- OCEAN: https://deeppersonality.app/ocean — OCEAN is the Big Five acronym (Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism). Continuous spectra, not a type. The test-intent page is https://deeppersonality.app/ocean-personality-test. Path: ten-item teaser, then IPIP-50, then an attachment overlay, then an optional partner comparison.
- Big Five: https://deeppersonality.app/big-five — The Big Five is the OCEAN model: Openness, Cons
