AR.js Studio is designed to build Web AR experiences for free, without coding. A Web App to create Web AR apps, and remove the barrier of coding knowledge. This is a Call to Arms to help building this tool. — Let fire burn: Instead of lighting a fire on the teacher’s table, students can do this safely on their own table as an additional, virtual experiment: a fire will appear on top of a marker/image so the student can inspect it, without being in danger.