This page describes content that has been removed from Java Edition.
This feature was present in earlier versions of Java Edition, but has since been removed. This feature has never been present in other editions of the game.
The level previewer was hosted on minecraft.net/infdev/preview.jsp (archive), and was removed between September 14 and 26, 2010.[1] However, it remained in the game's source code until 12w18a.[2] It is not known how to run the visualizer following the removal of the previewer page.
Added the Infinite Map Visualizer. It had a critical issue: if the player opened a world in the previewer, it would corrupt the world's level.dat file, along with the player's inventory.[3]
