MBTI variants with broad accessibility. Basic test free; detailed reports paid. Widely used commercially despite limited scientific validity.
Free 25-question trivia game. Each round mixes real facts with plausible-sounding fictions — spot the lies, build a streak. Live global leaderboard, daily best-round and best-streak tracking. Pool of 460+ vetted facts and fictions. No signup, mobile-first, browser-only.
Several million community-built trivia quizzes. The canonical online quiz destination since 2007. Freemium with a generous free tier.
The most-validated personality model in research psychology. Free, ad-free, takes 10-20 minutes. The honest science option.
Geography-focused quizzes. Fast format — type as many countries/states/capitals as you can in a time limit. Free.
Public Kahoot quiz library. Originally a classroom tool, the public catalog covers every topic. Multiplayer-capable, free.
Mental Floss's daily quiz. One of the longest-running quality daily-quiz formats online.
Long-running general trivia. Massive catalog — quizzes on essentially every conceivable topic. Free with ads.
Free trivia API powering many quiz apps. Browse questions by category and difficulty. Developer-leaning but the front-end works for casual play.
Personality and trivia quizzes hub. Massive volume; quality varies. Use the personality and entertainment-quiz sections.
Medically-reviewed mental health screening quizzes. Evidence-based instruments in casual-test format. Free.
Themed trivia with badges and progression. Pop-culture leaning. Free with ads; paid removes them.
Daily trivia quizzes, varied topics. Lightweight format with quick rounds. Free with ads.
Straight trivia, no gimmicks. Topical quizzes from history through pop culture. Free, browser-based, since 2002.