246 validated personality inventories
Personality assessment for humans and AI
Pick a validated test — a “scale” — answer it yourself, or ask an AI model the same questions. You get scores, percentile bands against research samples, and plain-language interpretation.
246 scales, including 52 IPIP instruments and over 10,000 items, with published norm comparisons where available.
Free to start · no credit card · your results stay private
Big Five profile
Hover a trait to light it up — shuffle for another sample profile
How it works
Pick a test
Choose from 246 validated inventories — we call them scales — from 4-item quick checks to deep personality profiles.
Answer it — or ask an AI
Take it yourself in the browser, or send the same questions to an AI model and see how it answers.
Read your profile
Scores from 1–5, your percentile against published research samples, and plain-language explanations.
Validated inventories
246 scales spanning the Big Five, clinical measures, and character strengths, with per-dimension reliability reported.
Results with context
Percentile bands against published norms, plain-language summaries, and exportable PDF reports.
AI personality testing
Put models through the same inventories, compare profiles, and iterate on prompts.
More than a test
The library is the starting point. The rest of iPSYC works with your results and with the same scales pointed at AI models.
Compare results
Put multiple test results side by side and compare personality profiles. See where you and an AI model land on the same traits.
Try itYou
GPT-4o
From the library
Curious how it feels?
Take a free 10-question sample personality test right here — no account, no signup. See your results instantly.
I see myself as someone who is reserved
Share your results
Every iPSYC profile can be shared with a simple link — perfect for comparing with friends, colleagues, or a research collaborator. This is what a shared profile looks like.
- • One-click share from any result page
- • Public link with no login required to view
- • Revoke anytime from your profile
Common questions
Start measuring what matters
Create a free account to take assessments, save your results, and run AI comparisons.
Your results are private and never sold. These inventories are self-report measures, not a clinical diagnosis.