Mall Item Checker
Check a single .wrl and its texture against the Mall's upload
rules before you submit it. Every limit is reported with the measured
number, so you know your headroom.
Pick your own background colour or gradient for screenshots.
World Checker
Drop a whole world — a folder or a .zip, with as many
textures as it takes. No clicking twenty files one at a time, and no
twenty-file cap.
Plays world sounds, and warns when a clip is too loud.