Project Lodestone
Open-source tools for editing and converting Minecraft worlds
At a glance
- Editor scoreNot yet scored
- PricingOpen source
- Best forWeb-based multi-format world editing
- Paid fromNone
- Facts checked20 Sep 2026
Where it wins
- Supports conversion across multiple Minecraft editions and versions
- Covers NBT, region, biome, entity, and pack editing
- Includes a LevelDB browser and datapack editor
Where it doesn't
- The project is still under active development
- Much of the listed functionality is planned rather than complete
- Desktop and web frontends are described, but this listing focuses on web access
Our verdict on Project Lodestone
Project Lodestone is an open-source Minecraft world toolset for editing and converting worlds across multiple editions and legacy versions. Its intended audience includes Minecraft administrators, map creators, technical users, and developers working with Java Edition, Bedrock Edition, Legacy Console Editions, 3DS Edition, and Raspberry Pi Edition worlds. The project is available through a web platform and is designed around direct work with world data and Minecraft file formats.
Its strongest differentiator is breadth. Project Lodestone aims to support conversion between supported editions and versions while also covering NBT, S-NBT, MCR/MCA, GRF, MCS, ARC, LOC, PCK, COL, FUI, CDB, and VDB formats. Planned and supporting tools include save, level, region, chunk, and player-data editing, plus biome editing, entity and block-entity editing, a LevelDB browser, a datapack editor, and a map item editor. Resource- and texture-pack conversion extends the scope beyond world saves, making the product relevant when a project spans several parts of a Minecraft installation.
The main consideration is development status. The project is under active development, and much of the listed functionality is planned rather than complete. That makes Project Lodestone a strong fit for users seeking an open-source, web-based foundation with broad edition and format ambitions, especially when detailed world-data work matters. Users who need a completed workflow for immediate production use should favor a tool whose required editing and conversion features are already available. Project Lodestone is most compelling for technical users comfortable following an evolving toolset and evaluating whether its current capabilities match their specific world format and edition.
Project Lodestone pricing
Project Lodestone fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | None |
| 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 | Web |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Open source |
| Website | team-lodestone.github.io |
| Facts checked | 20 Sep 2026 |
Alternatives to Project Lodestone
- ChunkerA capable local converter with strong region, mapping, and automation controls.—
- Universal Minecraft ToolA deep Windows toolkit for cross-edition conversion, world editing, and chunk pruning.4.8
- WorldSwitchAffordable two-way Java–Bedrock conversion with free small-file conversions.8.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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