Forma guides you through Input Harbor. Standing in the way: Captain Invalid Input — every mistake this lane teaches you to avoid. Forms that listen, images that load, video, canvas, SVG and the modern PWA arsenal.
All 46 lessons below are free, need no signup, and each one opens as a comic issue with a live try-it sandbox, a task list that pays XP, and a narrator that reads it aloud. Progress is stored in your own browser — nothing is uploaded anywhere.