404: High in Openness, vs 16Personalities

404: High in Openness, and 16Personalities both land on Depends.

404: High in Openness,

outofservice.com

Analyzed October 11, 2026

Depends

Confidence: Low

A free, casual Big Five self-quiz that's fine for personal curiosity, but evidence about this specific test is thin and the site appears barely maintained.

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16Personalities

16personalities.com

Analyzed October 3, 2026

Depends

Confidence: Medium

Fine as a free, casual personality test for individuals curious about their type.

Read the full report

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404: High in Openness, versus 16Personalities
Compare	404: High in Openness,	16Personalities
Verdict	Depends	Depends
Best for	Casual self-reflection	Casual self-reflection
Who it's not for	Hiring or candidate screening	Hiring, promotion, or candidate screening
Privacy	No known public vulnerabilities found in the sources reviewed.^¹	Publishes a security page and privacy policy; no known public vulnerabilities found in the sources reviewed.¹⁰
Support quality	No usable evidence	No usable evidence in sources
Public sentiment	No direct user reviews of this specific test were found; r/BigFive discussions mention alternatives like Truity.^⁴	Opinion is polarized: many enjoy the free test's accessibility while MBTI communities and some reviewers attack its accuracy and premium upsell.
Biggest gotcha	Trait scores describe tendencies only; never use them for hiring or clinical decisions^³	Workplace-assessment vendors recommend validated alternatives for team use¹⁶

Pick 404: High in Openness, when

Casual self-reflection
Curiosity about Big Five traits
People who enjoy psychology quizzes

When 404: High in Openness, is not a fit

Hiring or candidate screening
Teams needing validated workplace assessments
Anyone wanting clinical diagnosis
Buyers expecting support, SLAs, or vendor accountability

Pick 16Personalities when

Casual self-reflection
First-time test takers
Team icebreakers
Career explorers on a budget

When 16Personalities is not a fit

Hiring, promotion, or candidate screening
Teams needing scientifically validated assessments
Anyone expecting a real MBTI diagnosis
Buyers resentful of paywalled premium upsells

Sources

Product security page (404 placeholder)outofservice.com
official
Openness to experience - Wikipediaen.wikipedia.org
official
Understanding the Big 5 Personality Traits - Cleveland Clinichealth.clevelandclinic.org
official
r/BigFive communityreddit.com
review
Openness and other personality traits (link to personality test)polyamory.com
review
Is Openness (the Big 5) Important to You? - Personality Cafepersonalitycafe.com
review
16Personalities: Free personality test, type descriptions16personalities.com
official
Free Personality Test16personalities.com
official
Premium Career Suite16personalities.com
official
Product security page16personalities.com
security
16personalities.com is a scam (a rant)reddit.com
review
Why is 16personalities considered to be a bad test?reddit.com
review
Is the $49 purchase on 16Personalities worth it?reddit.com
review
16Personalities Review . Score 69/100 (D)globaltalentinstitute.com
review
How 16personalities Captures $7.02M in Traffic Valueinpages.ai
news
16Personalities alternatives for work: 4 better optionscompono.com
news