Chunker is a free, open-source tool for converting Minecraft worlds between Java Edition and Bedrock Edition. It processes worlds locally and can carry over level settings, blocks, biomes, tile entities, multiple dimensions, containers, items, and in-game maps. It can also upgrade or downgrade worlds between supported game versions. Inputs include world folders, ZIP archives, and MCWORLD files, with drag-and-drop available. Users can adjust conversion and export settings, then save export settings for later conversions. Chunker offers Windows, macOS, Linux, and web-interface access, plus a command-line interface for conversion and workflow integration. The CLI requires Java 17 or higher. Not all world data transfers: entities and player inventories are not converted, and structure data such as villages and strongholds is listed as unsupported or limited. The project is licensed under MIT, with source code on GitHub. The listed supported formats differ by edition, so check the relevant version range before converting.
Who it is for
Chunker suits Minecraft players who need to move worlds between Java and Bedrock editions or adjust a world to another supported game version. Its command-line interface may also suit users integrating conversions into a workflow.
What is good
- Converts worlds between Java and Bedrock editions.
- Processes world data locally on the user's machine.
- Accepts folders, ZIP archives, and MCWORLD files.
- Conversion and export settings can be saved for later.
- Free and open source under the MIT license.
What to know first
- Does not convert entities or player inventories.
- Structure data such as villages and strongholds is unsupported or limited.
- The CLI requires Java 17 or higher.
- Supported game-version ranges differ by edition.
Verdict
Chunker provides local conversion between Minecraft editions and handles a range of world data. Check the supported version range first, and note that entities and player inventories do not transfer.
Chunker plans and pricing
All plansCompared on Minecraft world editors
- Free plan
- Yes
- Archive extraction
- Yes
- Supported formats
- Minecraft Bedrock 1.12.0–1.26.50; Minecraft Java 1.8.8–1.21.11 and 26.1–26.3
- Supported platforms
- Windows, macOS, Linux, web interface, Java CLI
