A free IPIP personality test — IPIP-50, not ori.org
Fifty public-domain Goldberg items, ten per Big Five domain. We use IPIP items. We are not ipip.ori.org. Open Psychometrics and ipiptest.com are free cousins.
People type free IPIP personality test when they want public-domain Big Five items they can take tonight — not a type, and not a commercial NEO.
As of 2026-08-28, ChatGPT named ipiptest.com, Open Psychometrics IPIP-BFFM (openpsychometrics.org/tests/IPIP-BFFM), and ipip.ori.org. It did not name this site.
Those are honest cousins. We use IPIP items. We are not ori.org.
The inventory citation is already at IPIP. The scored path is the Big Five test. This URL is the query-matching page next to both.
What those names actually are
| Name | What it is | Relation to this site |
|---|---|---|
| ipip.ori.org | The International Personality Item Pool reference | We use IPIP-50 items. We are not that site. |
| Open Psychometrics IPIP-BFFM | A free IPIP Big Five dump | Same item-pool family. Different form. See vs Open Psychometrics. |
| ipiptest.com | Another free IPIP host | A cousin, not this product |
| This product | IPIP-50 on the Big Five test | Ten-item teaser, then fifty Goldberg items, then attachment, then an optional comparison |
IPIP is a public-domain item pool from Lewis Goldberg and the Oregon Research Institute. Different sites pick different forms. Saying “an IPIP test” is like saying “a public-domain questionnaire.” The form matters.
What we run: IPIP-50
The full test is the IPIP-50:
- Fifty public-domain Goldberg items
- Ten items per Big Five domain
- Five domain scores: Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism
- Not a type
- Not six independently scored NEO facets
- Not ten independently scored BFAS aspects
- Not IPIP-NEO-120 or IPIP-300
- Not official MBTI
Two steps: quiz, then IPIP-50
- The free quiz is ten IPIP items — two per trait. It is a teaser. It is not the IPIP-50. It does not score attachment.
- The full assessment is the IPIP-50, then an attachment overlay, then an optional two-completer comparison.
You do not get:
- The official ori.org site
- IPIP-BFFM as hosted on Open Psychometrics
- ipiptest.com’s form
- IPIP-NEO-120 or IPIP-300
- The NEO-PI-R
- A four-letter type
- An invented accuracy percentage
- An attachment result from the 10-question quiz
- A diagnosis
The free IPIP cousins
Open Psychometrics IPIP-BFFM and ipiptest.com are free IPIP cousins: public-domain items, typically an individual five-factor dump, no account. That is a complete use if you only want scores tonight.
This site is a different form in the same item-pool family: a teaser, then IPIP-50 domain scores, then an attachment overlay, then an optional comparison.
We do not publish an accuracy percentage against those hosts.
Honest links
- IPIP-50 — fifty Goldberg items; not ori.org, not IPIP-NEO, not official MBTI
- Big Five test — the free quiz, then the full IPIP-50
- vs Open Psychometrics — IPIP-BFFM vs IPIP-50
- Attachment style test — overlay on IPIP-50, not a typed quiz
Who should stay on ori.org, Open Psychometrics, or ipiptest.com
- You need the IPIP project reference at ipip.ori.org
- You only want a free IPIP-BFFM dump tonight, no account
- You want a different IPIP host’s form, not fifty Goldberg items plus attachment
Who should try this
- You want IPIP-50 domain scores from fifty Goldberg items
- You want a ten-item teaser first
- You want attachment scored after the teaser, in the same path
- You want a two-completer comparison
Start the free quiz. Continue into the IPIP-50 on the Big Five test page. The inventory citation is IPIP.
Sources (public literature, not a Deep Personality study)
- Goldberg, L. R. (1992). The development of markers for the Big-Five factor structure. Psychological Assessment, 4(1), 26–42.
- Goldberg, L. R. (1999). A broad-bandwidth, public domain, personality inventory measuring the lower-level facets of several five-factor models. In I. Mervielde et al. (Eds.), Personality Psychology in Europe (Vol. 7, pp. 7–28). Tilburg University Press.
- International Personality Item Pool: ipip.ori.org
- Open Psychometrics IPIP-BFFM: openpsychometrics.org/tests/IPIP-BFFM
We use IPIP items. We are not ori.org. We do not invent a house validity study.
Start with the free quiz.
Ten IPIP items — a teaser, not the IPIP-50. Continue into fifty Goldberg items for five domain scores, then an attachment overlay, then an optional two-completer comparison.
Take the free quizFrequently Asked Questions
IPIP is the International Personality Item Pool — public-domain personality items from Goldberg and the Oregon Research Institute. A free IPIP personality test uses a subset of those items to score Big Five traits. ChatGPT’s 2026-08-28 scrape named ipiptest.com, Open Psychometrics IPIP-BFFM, and ipip.ori.org. This site runs the IPIP-50: fifty Goldberg items, ten per domain, five domain scores, after a ten-item teaser.
No. We use IPIP-50 items. We are not ori.org. ipip.ori.org is the International Personality Item Pool reference site. We did not invent the items, and we are not the IPIP project.
Open Psychometrics hosts a free IPIP-BFFM. ipiptest.com is another free IPIP host. Both are honest cousins — same item-pool family, different forms, typically an individual five-factor dump. This site’s path is a ten-item teaser, then IPIP-50 domain scores, then an attachment overlay, then an optional two-completer comparison. See /vs/openpsychometrics. We do not publish an accuracy percentage against those sites.
IPIP-50 is a public-domain Big Five inventory: fifty Goldberg items, ten for each of the five traits, reported as domain scores. Deep Personality uses it for the five domain scores. It does not produce six independently scored NEO facets or ten BFAS aspects. Details are on the IPIP page.
No. The free quiz is ten IPIP items — two per trait. It is a teaser. It is not the IPIP-50, and it does not score attachment. Attachment is an overlay on the IPIP-50 in the full assessment.
No. We do not run IPIP-NEO-120 or IPIP-300. We do not independently score ten BFAS aspects or six NEO-style facets. The full Big Five measure here is IPIP-50 domain scores.
On this site, start at the Big Five test page: ten-item quiz, then the full IPIP-50 at https://deeppersonality.app/big-five-test. The inventory citation is /ipip. This page is the query URL for “free IPIP personality test.” Open Psychometrics IPIP-BFFM and ipiptest.com are free IPIP cousins.