Chunker

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Score7.2

Rank#2 of 35

PriceFree

Free planYes

Runs onLinux, macOS, Web, Windows

Summary

Chunker converts Minecraft worlds between Java Edition and Bedrock Edition, processing them locally on your machine. It can transfer level settings, blocks, biomes, tile entities, multiple dimensions, containers, items, and in-game maps, and can upgrade or downgrade worlds across supported game versions. You can provide a world folder, ZIP archive, or MCWORLD file, including by drag and drop. Conversion and export settings are adjustable and can be saved for later. Chunker also includes a command-line interface for conversion and workflow integration; using the CLI requires Java 17 or higher. It does not convert entities or player inventories, and structure data such as villages and strongholds is listed as unsupported or limited. The software is free and open source under the MIT license. It is available for Windows, macOS, Linux, and through a web interface. The supported game versions vary by edition, so check compatibility before converting a world.

Who it is for

Chunker suits Minecraft players who need to move worlds between Java and Bedrock editions or adjust worlds between supported versions. It also fits users who want local processing or a command-line workflow.

What is good

Converts worlds between Java and Bedrock editions
Processes world data locally
Accepts folders, ZIP archives, and MCWORLD files
Can upgrade and downgrade supported world versions
Free and open source under the MIT license

What to know first

Entities are not converted
Player inventories are not converted
Structure data is unsupported or limited
CLI requires Java 17 or higher

Verdict

Chunker covers many world elements and supports both editions, with local processing and command-line use as options. Keep its entity, inventory, and structure-data limitations in mind before converting.

Chunker plans and pricing

All plans

Free Free Completely free; Java and Bedrock world conversion chunker.app · 3 Oct 2026

Compared on Minecraft world editors

Free plan: Yeschunker.app
Archive extraction: Yeschunker.app
Supported formats: Minecraft Bedrock 1.12.0–1.26.50; Minecraft Java 1.8.8–1.21.11 and 26.1–26.3chunker.app
Supported platforms: Windows, macOS, Linux, web interface, Java CLIchunker.app

Facts

Purpose: Chunker converts Minecraft worlds between Java Edition and Bedrock Edition.github.com · 3 Oct 2026
Local processing: Worlds are converted and worked with locally on the user's machine.learn.microsoft.com · 3 Oct 2026
World data: Chunker can convert level settings, world data including blocks, biomes and tile entities, multiple dimensions, containers and items, and in-game maps.learn.microsoft.com · 3 Oct 2026
Version conversion: Chunker can upgrade and downgrade worlds between different game versions.github.com · 3 Oct 2026
Inputs: The app accepts world folders, ZIP archives and MCWORLD files, and can also accept drag-and-drop inputs.learn.microsoft.com · 3 Oct 2026
Advanced settings: Users can adjust conversion settings and export settings for reuse in later conversions.chunker.app · 3 Oct 2026
CLI: Chunker includes a command-line interface that can be used for conversion and workflow integration.github.com · 3 Oct 2026
CLI requirement: The CLI requires Java 17 or higher.github.com · 3 Oct 2026
Unsupported data: Entities and player inventories are not currently converted; the repository also lists structure data such as villages and strongholds as unsupported or limited.learn.microsoft.com · 3 Oct 2026
Open source: Chunker is open source under the MIT license, with its code available on GitHub.github.com · 3 Oct 2026
Platforms: Microsoft Learn describes standalone app versions for Windows, Mac and Linux.learn.microsoft.com · 3 Oct 2026
Current release: The GitHub releases page lists version 1.21.0, released October 2, 2026.github.com · 3 Oct 2026
Maker: Hive Games describes Chunker as an internal tool that it offers free to Minecraft partners and the general public under an exclusive licensing deal with Microsoft.hivegames.io · 3 Oct 2026
Organization details: Hive Games Limited lists UK company number 08451891; its opened pages do not state a founding year or headquarters.hivegames.io · 3 Oct 2026