About

Unnested exists for one reason: to help you actually learn SQL. We're a small team based in Pennsylvania, and we built this because too many platforms bury learning under gamification, filler content, and distractions. We cut all of it — just problems that matter and a real database to run them against.

Every query runs locally in your browser using PGlite, a WebAssembly build of PostgreSQL. Real feedback, no waiting.

Questions or problem suggestions? hello@unnested.io