Free tests, including official and fun tests, quizzes and optical illusions. Also provides history of the IQ test.

Tests and questionaires prepared by members of the Cerebrals Society.

Daily changing IQ-style questions of diverse nature for fun and learning purposes.

Test for a fee that takes 30-40 minutes and provides online results.

A very difficult culture-fair test.

Various paid high-range tests offered along with IQ Society membership. Also provides free puzzles and games.

List and rating of IQ tests available online.

Five free tests that measure different abilities. High score allows one to join the society.

A 12-minute test for a fee, with certificate and multi-page report.

List of tests in wide-ranging or specific areas, and links to high intelligence societies.

Free test with 15-minute timer and automatic scoring.

Directory of intelligence tests of varying psychological validity. Includes brief description and estimated time required for completion.

Free test with information on intelligence testing and history thereof. Additional detailed reports are available for a fee.

Free 12-minute test.

An IQ level indicates how one is positioned compared to the majority of individuals in a given age bracket.

Various professionally designed online IQ tests.

Assesses English vocabulary knowledge. Presented as an experimental form of a verbal IQ test.

Admission test for several high-IQ societies. Contains sections with various levels of difficulty.

Individual tests for children not requiring use of language. Especially suited for children with problems in the areas of language and verbal communication. Norms available for ages 2 to 17.

Links to IQ tests in various languages.

Contains special and combined IQ tests and links to IQ and EQ sites.

Free IQ tests for various age categories, and personality tests.

Free test, requires registration to view results.

Over 100 links to IQ tests in various languages.

Large variety of IQ tests, links to HIQ organizations, articles about intelligence.

Provides an online IQ, EQ and general knowledge tests that evaluate your intelligence.