GAIvsIQ — Free Online IQ Test

GAIvsIQ is a free online IQ test that takes about 30 minutes with no sign-up. You get an overall IQ estimate plus a cognitive profile across reasoning, memory and speed tasks, so you can see where your relative strengths and weaknesses are rather than a single number. The test runs entirely in the browser and works on desktop and mobile. It is not a WAIS/WISC and not a diagnosis; it is an educational estimate designed to be transparent about its limits. A secondary tool compares General Ability Index (GAI) and Full Scale IQ (FSIQ) if you already have official Wechsler scores from a WISC or WAIS report: paste the composite scores to see the GAI–FSIQ gap and what it usually means. Plain-language guides explain why GAI can be higher than IQ, how working memory and processing speed affect scores, and what scores mean for gifted testing. Results are free; an optional detailed score sheet is a one-time purchase. It is useful for parents, students, teachers and anyone curious about cognitive testing.