A quiz generator with a shareable scorecard

Blast through cosmic trivia with Stellar Quiz! Choose from 5 space-themed categories (Solar System, Stars & Space, Astronomy History, Space Missions, Cosmos Mysteries) or build your own custom quiz. Race the 15-second timer, earn letter grades with gold confetti celebrations, and share your scorecard as a unique link, via native share, Twitter/X, or download a beautiful PNG scorecard image. Everything is encoded in the URL — no server needed!