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MCA Selector

MCA Selector is a free desktop tool for selecting, exporting, deleting, and editing chunks and regions in Minecraft Java Edition world saves.

Place
#12 of 35
Score
6.1
MCA Selector's website

What MCA Selector is

MCA Selector is a free desktop tool for selecting, exporting, deleting, and editing chunks and regions in Minecraft Java Edition world saves. Its filters can use conditions such as data version, last update time, and inhabited time, with multiple conditions chained together. A Script Editor supports custom one-line Groovy scripts. The chunk editor exposes the full NBT structure, including points of interest and entity data, so tags can be changed, added, deleted, or moved. Chunks can be imported from another world with offsets and overwrite options, while selections can be copied and pasted through the system clipboard. Customizable color-gradient overlays show per-chunk values. A command-line mode supports operations including selection creation, import and export, deletion, region defragmentation, NBT changes, and image generation. Downloads include Windows, macOS, and Linux builds, plus a universal JAR; the tool works with Anvil .mca region files. The project warns that snapshot-generated worlds may not work even when a version appears in its support table. Because MCA Selector can change or delete chunks, the project recommends backing up worlds first.

Good

  • Filters combine conditions for selecting chunks
  • NBT editor includes entity and points-of-interest data
  • Imports chunks with offsets and overwrite options
  • Offers GUI and command-line operations
  • Downloads available for Windows, macOS, and Linux

Watch out

  • Designed for Minecraft Java Edition world saves
  • Snapshot-generated worlds are not guaranteed to work
  • Modifies or deletes chunks, so backups are recommended

Who it suits

MCA Selector suits Minecraft Java Edition players who need to select or manage chunks in Anvil world saves. Its NBT editor, filters, and command-line operations also suit users comfortable with detailed world data changes.

Verdict

MCA Selector offers detailed control over chunk selection and region data, including scripted filters and command-line operations. Its snapshot caveat and potential to modify or delete world data make backups important.

Plans and prices

From MCA Selector's own pricing page, checked 30 Sep 2026.

All about pricing
PlanPriceWhat it gives you
MCA SelectorFreeMIT License · downloadable Windows, macOS, Linux and universal JAR builds

The facts

Each one read from MCA Selector's own pages, with the date it was checked.

What it does

Chunk filtering
Filters can select, export or delete chunks and regions using conditions such as data version, last update time and inhabited time, with multiple conditions chained together.checked 30 Sep 2026
Chunk import
Chunks can be imported from another world with offsets, overwrite options, selection-only import, Y offsets and section ranges.checked 30 Sep 2026
CLI operations
CLI modes include selection creation, chunk export, chunk import, region defragmentation, chunk deletion, NBT changes, cache image generation and image generation.checked 30 Sep 2026
Command line
Using any command-line parameter switches MCA Selector to CLI mode without starting the GUI.checked 30 Sep 2026
Copy and paste
Selections can be copied to the system clipboard and pasted into the same or a different world.checked 30 Sep 2026
Custom scripts
The filter tool supports custom one-line Groovy scripts and a Script Editor.checked 30 Sep 2026
Downloads
The repository provides Windows Installer, macOS arm64 and x64, Debian arm64 and x64, RPM arm64 and x64, and universal JAR downloads.checked 30 Sep 2026
License
The software is released under the MIT License, permitting use, copying, modification, publication, distribution, sublicensing and sale subject to the license conditions.checked 30 Sep 2026
NBT editing
The chunk editor allows editing the entire NBT structure, including poi and entities data, with tags that can be changed, added, deleted or moved.checked 30 Sep 2026
Notable limitation
The project states that snapshot-generated worlds are not guaranteed to work even when a version appears in the supported-version table.checked 30 Sep 2026
Overlays
Customizable overlays display per-chunk values as color gradients with configurable minimum and maximum values.checked 30 Sep 2026
Purpose
MCA Selector exports, deletes or edits selected chunks and regions in Minecraft Java Edition world saves.checked 30 Sep 2026
Safety warning
The project warns that MCA Selector modifies and deletes Minecraft world chunks and recommends making backups before use.checked 30 Sep 2026
Support
The maintainer profile links to a Discord server.checked 30 Sep 2026
Supported versions
The project lists support from Minecraft 1.2.1 through 1.21.11 and versions 26.1 through 26.3+.checked 30 Sep 2026

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