International Personality Item Pool

A scientific collaboratory for the development of advanced measures of personality and other individual differences.

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Take Tests

Complete psychological assessments online. Choose from 16+ test batteries including Big Five, NEO-PI-R, HEXACO, and more.

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Browse Items

Explore 3,200+ personality test items with translations in 30+ languages. Search, filter, and view item details.

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Archive

Access technical documentation, scoring guides, research papers, and the complete IPIP archive.

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About This Project

This website is a modern recreation of the International Personality Item Pool (IPIP) project. All original content has been preserved and reorganized for better accessibility. The IPIP provides public-domain personality test items and scales for research and educational purposes.

Quick Stats

  • 3,224 personality test items
  • 16 test batteries available
  • 304 personality scales
  • 30+ language translations

Features

  • ✓ Interactive online testing
  • ✓ Multi-language support
  • ✓ Automatic scoring
  • ✓ Progress saving
  • ✓ Complete item database
  • ✓ Full archive access