MCA Selector

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Score7.1

Rank#4 of 35

PriceFree

Free planYes

Runs onLinux, macOS, Windows

Summary

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.

Who it is for

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.

What is 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

What to know first

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

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.

MCA Selector plans and pricing

All plans

MCA Selector Free MIT License · downloadable Windows, macOS, Linux and universal JAR builds github.com · 30 Sept 2026

Compared on Minecraft world editors

Free plan: Yesgithub.com
Minecraft editions: javagithub.com
Supported platforms: Windows, macOS, Linuxgithub.com
Region editing: Yesgithub.com
Terrain editing: Nogithub.com
Entity editing: Yesgithub.com
Batch operations: Yesgithub.com
Supported world formats: Anvil .mca region filesgithub.com

Facts

Purpose: MCA Selector exports, deletes or edits selected chunks and regions in Minecraft Java Edition world saves.github.com · 30 Sept 2026
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.github.com · 30 Sept 2026
Custom scripts: The filter tool supports custom one-line Groovy scripts and a Script Editor.github.com · 30 Sept 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.github.com · 30 Sept 2026
Chunk import: Chunks can be imported from another world with offsets, overwrite options, selection-only import, Y offsets and section ranges.github.com · 30 Sept 2026
Copy and paste: Selections can be copied to the system clipboard and pasted into the same or a different world.github.com · 30 Sept 2026
Overlays: Customizable overlays display per-chunk values as color gradients with configurable minimum and maximum values.github.com · 30 Sept 2026
Command line: Using any command-line parameter switches MCA Selector to CLI mode without starting the GUI.github.com · 30 Sept 2026
CLI operations: CLI modes include selection creation, chunk export, chunk import, region defragmentation, chunk deletion, NBT changes, cache image generation and image generation.github.com · 30 Sept 2026
Supported versions: The project lists support from Minecraft 1.2.1 through 1.21.11 and versions 26.1 through 26.3+.github.com · 30 Sept 2026
Downloads: The repository provides Windows Installer, macOS arm64 and x64, Debian arm64 and x64, RPM arm64 and x64, and universal JAR downloads.github.com · 30 Sept 2026
License: The software is released under the MIT License, permitting use, copying, modification, publication, distribution, sublicensing and sale subject to the license conditions.github.com · 30 Sept 2026
Safety warning: The project warns that MCA Selector modifies and deletes Minecraft world chunks and recommends making backups before use.github.com · 30 Sept 2026
Support: The maintainer profile links to a Discord server.github.com · 30 Sept 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.github.com · 30 Sept 2026