Chunker review
A capable local converter with strong region, mapping, and automation controls.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Chunker is a free, open-source desktop and command-line application for converting Minecraft worlds between Java Edition and Bedrock Edition. It is aimed at players, creators, server operators, and technical users who need more control than a basic edition switch. The converter handles blocks, biomes, tile entities, dimensions, containers, items, and in-game maps, while running locally on Windows, macOS, and Linux. It is maintained by Hive Games Limited.
Its strongest area is conversion control. Chunker can edit exported world settings, remap dimensions, remove selected dimensions, and prune chunks outside a specified region. Configurable block, biome, dimension, and converter mappings add another layer of control for worlds that need targeted adjustments. Conversion settings can also be exported and imported, which supports repeatable workflows and command-line use. The published supported ranges cover Bedrock 1.12.0–1.21.130 and 1.26.0–1.26.50, plus Java 1.8.8–1.21.11 and 26.1–26.3.
The main boundary is entity conversion: Microsoft documentation states that entities are not currently converted, although they are retained when a world is edited in its source version. That makes Chunker a strong fit for world data and structural conversion, but a less complete choice when entity transfer is central to the project. Its local desktop and CLI format will suit users who want direct control over files and settings. Choose Chunker for free Java–Bedrock conversion with region tools, mappings, and automation options; look elsewhere if entity conversion is a core requirement.
Chunker pros and cons
- Where it wins
- Converts worlds between Java Edition and Bedrock Edition
- Prunes chunks, remaps dimensions, and edits exported settings
- Runs locally on Windows, macOS, Linux, and through a CLI
- Where it doesn't
- Entities are retained but not converted
- Advanced conversion settings may require configuration work
- Works within its published Java and Bedrock version ranges
Chunker fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update