Level previewer

This page describes content that has been removed from the game.

This feature was present in earlier versions of Java Edition, but has since been removed.

This article is a work in progress.

Please help expand and improve it. The talk page may contain suggestions.

A level previewer was a feature which was added in Java Edition Infdev 20100616-2210, but later removed in Alpha v1.1.1 due to 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.^[1] It was exclusive to the browser version of Minecraft.

The level previewer was hosted on minecraft.net/infdev/preview.jsp, and got removed between the 14th and 26th of September 2010, however it remained on the game's source code until Java Edition 12w18a.^[2]

History

Java Edition Infdev
20100616-2210							Added the level previewer.
Java Edition Alpha
v1.1.1							The level previewer has been removed, however still remains on the source code, and can be reproduced.
Java Edition Beta
1.8							The level previewer no longer works, as it crashes immediately when launched.
Java Edition
12w18a							The level previewer has been removed from the source code.

Gallery

Level previewer in Alpha 1.1.2_01.
Level previewer in Beta 1.8 Pre-release. At this point, the applet breaks entirely, due to a NullPointerException error happening immediately.

References

↑ "Oops, the visualizer thing deletes your inventory. Be careful!" – @notch (Markus Persson) on X (formerly Twitter), June 16, 2010
↑ Source

Navigation

[1] "Oops, the visualizer thing deletes your inventory. Be careful!" – @notch (Markus Persson) on X (formerly Twitter), June 16, 2010

[2] Source

[1]

[2]