Chunker
Chunker: A capable local converter with strong region, mapping, and automation controls. Ranked #1 of 18 in Minecraft World Converters by our editors (9.2/10); pricing: Free plan; best for free Java–Bedrock conversion with advanced controls.
At a glance
- Editor score9.2 / 10
- PricingFree plan
- Best forFree Java–Bedrock conversion with advanced controls
- Free planYes
- Paid fromFree
- Facts checked20 Sep 2026
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
Our verdict on Chunker
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.
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Chunker pricing
Chunker fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Source editions | Not verified |
| Target editions | Not verified |
| Java-Bedrock conversion | Not verified |
| Version conversion | Not verified |
| Format conversion | Not verified |
| Preserves entities | Not verified |
| Batch conversion | Not verified |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | oss.chunker.app |
| Facts checked | 20 Sep 2026 |
Alternatives to Chunker
- Universal Minecraft ToolA deep Windows toolkit for cross-edition conversion, world editing, and chunk pruning.9.0
- WorldSwitchAffordable two-way Java–Bedrock conversion with free small-file conversions.8.7
- BridgerA free, open-source desktop converter for Minecraft worlds, versions, resource packs, and schematics.8.4
See all Chunker alternatives →
Chunker vs the competition
- Chunker vs Universal Minecraft Tool
- Chunker vs WorldSwitch
- Chunker vs Bridger
- Chunker vs Minecraft World Converter
- Chunker vs je2be
- Chunker vs Chunkoid
Compare Chunker with any tool side by side →
Also Ranked In
Chunker is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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