MCA Selector

A tool to select chunks from Minecraft worlds for deletion or export.

The MCA Selector contains a powerful tool to delete or export chunks and regions by conditions like the data version, the time it was last updated, how much time players have spent in this chunk and some more. Multiple of these conditions can be used to create a very specific query describing what chunks and regions should be deleted or exported.

The NBT Changer modifies the world files directly by changing specific values.

When selecting a single chunk, the menu "Edit chunks" becomes available. It allows precise editing of the entire NBT structure of that chunk, including poi and entities data. Names and values can be changed, added, deleted or moved (via drag & drop).

Importing chunks can be easily done by opening the target world first using File --> Open and then merging the chunks of a second world using Tools --> Import chunks. After selecting a folder containing region files, it is possible to import the chunks with a bunch of additional options.

It is possible to copy a selection to the system clipboard and pasting it to a different location in the same world or into an entirely different world.

When exactly two chunks are selected, they can be swapped using Tools --> Swap chunks. This is useful for corrupted region files when Minecraft failed to correctly save the region file index, resulting in scrambled chunks.