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Tech riderRev. 2 Oct 2026

Minecraft Region Fixer

Ch 077.1of 35 Minecraft World Editors
  1. 1Runs onLinux, Mac, Windows
  2. 2CostsFree plan
  3. 3Supported platformsWindows, Linux, Mac
  4. 4Region editingYes
  5. 5Terrain editingNo
  6. 6Entity editingYes
  7. 7Batch operationsYes
  8. 8Supported world formatsMinecraft region files (*.mca); Minecraft world folders
8 lines stated Written from the maker's own pages: github.com
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Overview

Minecraft Region Fixer is ranked #7 of 35 in Minecraft world editors on Specifiction. It runs on Linux, macOS, Windows. There is a free plan.

Minecraft Region Fixer plans and pricing

All plans
Minecraft Region Fixer Free GPL-3.0 licensed · requires Python 3.x github.com · 2 Oct 2026

Compared on Minecraft world editors

Free plan
Yesgithub.com
Supported platforms
Windows, Linux, macOSgithub.com
Region editing
Yesgithub.com
Terrain editing
Nogithub.com
Entity editing
Yesgithub.com
Batch operations
Yesgithub.com
Supported world formats
Minecraft region files (*.mca); Minecraft world foldersgithub.com

Facts

Purpose
Locates problems and tries to fix Minecraft worlds or region files.github.com · 2 Oct 2026
Corrupted chunks
It can replace corrupted chunks in region files using old backup copies of a Minecraft world.github.com · 2 Oct 2026
Without backups
Without a backup, it can eliminate corrupted chunks so Minecraft regenerates them.github.com · 2 Oct 2026
World file scanning
It scans level.dat and player .dat files and prints warnings when it encounters problems, but does not fix those files.github.com · 2 Oct 2026
Other uses
The project says it can replace chunks or regions with a backup, remove entities, and help investigate world problems.github.com · 2 Oct 2026
Command line
The README documents running the program with Python, including the command python regionfixer.py --help.github.com · 2 Oct 2026
Python requirement
The program requires Python 3.x and does not work with Python 2.x.github.com · 2 Oct 2026
Platforms
The usage wiki describes running from source on Windows, Linux, and Mac; Linux and Mac use python regionfixer.py.github.com · 2 Oct 2026
Parallel scanning
The command line supports a --processes or -p option to set the number of processes used for scanning.github.com · 2 Oct 2026
Logging
The command line supports a --log option that saves detailed results to a log file.github.com · 2 Oct 2026
Destructive actions
The usage guide documents options to delete broken chunks, broken region files, or entities when a chunk contains too many.github.com · 2 Oct 2026
Safety warning
The project warns that bugs may exist and recommends backing up a world before running the tool, which it says is used at the user's own risk.github.com · 2 Oct 2026
Support
The README directs bug reports and suggestions to GitHub and recommends Minecraft forum posts for feedback and questions.github.com · 2 Oct 2026
License
The repository identifies its license as GPL-3.0.github.com · 2 Oct 2026

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