Free IPIP-50 test online
Fifty public-domain Goldberg items. Not IPIP-NEO. The quiz is a teaser; attachment and a partner comparison come after.
This page is a free IPIP-50 test online. Deep Personality scores fifty public-domain Goldberg IPIP items — ten per Big Five domain. It is not IPIP-NEO. It is not NEO-PI-R. It is not official MBTI. We are not ori.org.
The path: a free quiz first (ten IPIP items — a teaser), then the full IPIP-50, then an attachment overlay, then an optional partner comparison after two people finish.
What IPIP is
IPIP is the International Personality Item Pool: a public-domain collection of personality items that researchers and teachers can use without licensing a commercial inventory.
Lewis Goldberg and colleagues published the pool so labs, classrooms, and applications could measure the same five-factor space without buying a commercial test. The items are sentences you agree or disagree with. Different IPIP forms pick different subsets and lengths. Saying “an IPIP test” is like saying “a public-domain questionnaire.” The form matters.
It is not a company, and it is not Deep Personality. The reference site is ipip.ori.org. We use IPIP-50 items. We are not ori.org.
What we run: IPIP-50, not IPIP-NEO
The full Big Five test on this site is the IPIP-50.
- Fifty public-domain Goldberg items
- Five domain scores: Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism
- Ten items each
- No six independently scored NEO facets
- No four-letter type
- Not official MBTI
- Not NEO-PI-R
- Not IPIP-NEO-120 or IPIP-300
The free quiz uses ten IPIP items — two per trait — from the same item pool. It is a teaser. It is not the IPIP-50.
IPIP-50 vs IPIP-NEO-120 vs IPIP-300
| Form | Length | What it is for |
|---|---|---|
| IPIP-50 | 50 items, 10 per Big Five domain | Domain scores: one number (and usually a percentile) per trait |
| IPIP-NEO-120 | 120 items | A public-domain representation of NEO-style structure, including facet-level scoring |
| IPIP-300 | 300 items | The long public-domain NEO-style form; more items per facet |
Those longer NEO-style forms are real IPIP inventories. Deep Personality does not run them. Sites that host IPIP-NEO-120 or IPIP-300 are a different product. Do not cite this page as IPIP-NEO.
After the teaser: attachment overlay and partner comparison
After the IPIP-50, the full assessment measures attachment style as an overlay — anxiety and avoidance, then a style label. The quiz does not score attachment.
If two people finish, you can get a side-by-side comparison. That is not a compatibility type.
Best free Big Five — and IPIP-BFFM
When people ask for the best free Big Five or an IPIP-50 test online, two honest answers show up.
Open Psychometrics hosts a free IPIP-BFFM (Big-Five Factor Markers): public-domain IPIP items, typically an individual five-factor dump, no account. That is a complete use if you only want scores tonight.
This page is a free IPIP-50 path: teaser, then fifty Goldberg items as domain scores, then attachment, then an optional comparison. Both use IPIP items. The form differs.
The full contrast is on Deep Personality vs Open Psychometrics — IPIP-BFFM vs IPIP-50. We do not publish an accuracy percentage against that site.
What “IPIP” does not mean here
- We did not invent the items
- We are not the IPIP project and we are not ori.org
- We are not NEO-PI-R and we do not run IPIP-NEO-120 or IPIP-300
- We are not official MBTI
- A quiz result is not a complete Big Five profile
- An IPIP score is not a diagnosis
If you want the inventory, start the quiz, then continue into the full IPIP-50.
Start the free IPIP-50 path.
The free quiz is ten IPIP items — a first read. Continue into the IPIP-50 for complete domain scores, then an attachment overlay, then an optional comparison.
Take the free quizFrequently Asked Questions
The International Personality Item Pool is a public-domain collection of personality items. Researchers use it to measure Big Five and related constructs without a commercial license. The reference site is ipip.ori.org. Deep Personality is not that site.
Yes. This page is a free IPIP-50 test online: fifty public-domain Goldberg items, ten per Big Five domain, reported as domain scores. Start with the ten-item teaser, then continue into the IPIP-50. After that, the full assessment overlays attachment and can compare two completers. We are not ori.org, not IPIP-NEO, and not official MBTI.
IPIP-50: fifty public-domain Goldberg items, ten per Big Five domain, reported as domain scores. We do not run IPIP-NEO-120 or IPIP-300, we are not NEO-PI-R, and we do not independently score six NEO-style facets.
No. We run the IPIP-50. We do not run IPIP-NEO-120 or IPIP-300, and we are not NEO-PI-R. Those longer forms score NEO-style facets. This product scores five IPIP-50 domains, then an attachment overlay, then an optional comparison.
No. The quiz is ten IPIP items — a teaser. The full assessment is the IPIP-50. Attachment style is scored after that, not in the quiz.
No. We use public-domain IPIP-50 items. We are not the International Personality Item Pool and we do not represent ori.org.
The honest free dump many people cite is Open Psychometrics’ IPIP-BFFM. This site’s free IPIP-50 test online is a different form: a ten-item teaser, then fifty Goldberg items as domain scores, then an attachment overlay and an optional partner comparison. We do not run IPIP-NEO-120 or IPIP-300. Compare BFFM vs IPIP-50 at /vs/openpsychometrics.
No. We are not official MBTI. The IPIP-50 reports five continuous domain scores, not a four-letter type. 16Personalities assigns a NERIS type label; that is a different product.
IPIP-300 is a longer NEO-style inventory with facet scoring. This product is built around IPIP-50 domain scores, then attachment, then an optional comparison. A longer form would be a different test.