Atlas is a free flashcard drill for learning every country's flag by sight. It was built for people studying for geography exams, trivia nights, travel planning, or simply anyone who wants to stop mixing up Chad and Romania.
Each round shuffles all 195 flags into a fresh order, so no two sessions play out the same way. There's no account, no sign-up, and no data entry required — you can start practicing the moment the page loads.
Spaced, active recall — trying to remember something before you're shown the answer — is one of the more effective ways to commit visual information to memory, which is why this site is built as a swipe-through deck rather than a static reference chart. Reviewing the flags you didn't know at the end of each round lets you focus your next attempt on exactly the gaps you have.
Flag images are served from flagcdn.com, a public flag image API. This site itself does not require you to create an account or submit personal information to use the quiz.