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Chunkweave NBT Editor
What Chunkweave NBT Editor is
Chunkweave NBT Editor is a free browser editor for structured data from Minecraft Java Edition. It presents NBT as a typed tree, where users can search nested tags and change values while keeping their types. It supports .nbt, .dat, .mca, .mcr, and .schematic files, including level.dat, playerdata, and other compressed NBT containers. Structure files can reveal structure blocks, entities, palettes, and metadata; Anvil regions show populated chunks on a 32×32 map before a chunk is opened. Parsing and rebuilding take place in a browser Web Worker. Chunkweave says opened world files are not uploaded, stored, or received by the service. Edits are downloaded as a separate file, leaving the original untouched, and undo and redo controls are available before download. The free plan requires no account or payment and has no cloud storage. The editor is intended for local manual inspection and editing, not API automation. It runs in a browser and has no Windows, macOS, or Linux desktop installer.
Who it suits
Chunkweave suits Minecraft Java Edition players, map makers, server administrators, and technical creators who need to inspect or edit NBT files locally. It is for manual work rather than API-based automation.
What it does well
- Free use with no account, payment, or cloud storage
- Supports five listed Java Edition file formats
- Searches nested tags and edits typed values
- Downloads a separate edited file
- Undo and redo before download
What to know first
- No Windows, macOS, or Linux desktop installer
- No API for automation
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Browser-based editor · no account, payment, or cloud storage · supports Java Edition .nbt, .dat, .mca, .mcr, and .schematic files | Free |
As nbteditor.org lists them, read 5 Oct 2026. The maker's own page has the final word.
Getting started
- Visit nbteditor.org in a browser.
- Open a supported Minecraft Java Edition file.
- Search nested tags or browse populated chunks in an Anvil region.
- Edit typed values and use undo or redo as needed.
- Download the rebuilt file as a separate copy.
Verdict
Chunkweave offers file inspection and editing in a browser, with local processing and separate-copy downloads. Choose it for manual Java Edition NBT work, not automated workflows or a desktop app.
Questions
How much does Chunkweave NBT Editor cost?
Its Free plan is listed as free. No account or payment is required.
Which platforms does it support?
It runs in a browser on the web. The maker says there is no Windows, macOS, or Linux desktop installer.
Which Minecraft editions and file formats does it support?
It supports Minecraft Java Edition data in .nbt, .dat, .mca, .mcr, and .schematic files.
Are opened world files uploaded to Chunkweave?
Chunkweave says opened world files are not uploaded, stored, or received by the service. Parsing and rebuilding take place in a browser Web Worker.
Does it edit terrain or support batch operations?
No. Terrain editing and batch operations are listed as unsupported.
Is Chunkweave an automation API?
No. The maker describes it as a tool for local manual inspection and editing, not an automation API.
Facts from Chunkweave NBT Editor's own pages
- Audience
- The maker describes it as intended for players, map makers, server administrators, and technical creators. · nbteditor.org, 5 Oct 2026
- Integrations and automation
- The maker describes the product as for local manual inspection and editing, and says it is not an automation API. · nbteditor.org, 5 Oct 2026
- Local processing
- The editor parses and rebuilds files in a browser Web Worker; the maker says opened world files are not uploaded, stored, or received by Chunkweave. · nbteditor.org, 5 Oct 2026
- Platform limit
- Chunkweave is browser-based and does not offer a Windows, macOS, or Linux desktop installer. · nbteditor.org, 5 Oct 2026
- Privacy details
- The privacy policy says Railway may process request logs, Google Analytics runs only after analytics-cookie consent, and the site loads fonts from Google Fonts. · nbteditor.org, 5 Oct 2026
- Purpose
- Chunkweave edits structured Minecraft Java Edition data in a browser. · nbteditor.org, 5 Oct 2026
- Region browsing
- For Anvil regions, it shows populated chunks on a 32×32 map before opening their NBT. · nbteditor.org, 5 Oct 2026
- Separate-copy export
- Edits are rebuilt locally and downloaded as a separate file, leaving the original untouched. · nbteditor.org, 5 Oct 2026
- Structures
- For structure files, it can inspect structure blocks, entities, palettes, and metadata. · nbteditor.org, 5 Oct 2026
- Support
- The maker lists email contact for privacy, support, and product questions. · nbteditor.org, 5 Oct 2026
- Supported files
- It supports .nbt, .dat, .mca, .mcr, and .schematic files. · nbteditor.org, 5 Oct 2026
- Typed tree editing
- The editor presents NBT data as a typed, editable tree and supports searching nested tags and changing typed values. · nbteditor.org, 5 Oct 2026
- Undo and redo
- The workspace includes undo and redo controls before download. · nbteditor.org, 5 Oct 2026
- World and player data
- It can edit level.dat, playerdata, and other compressed NBT containers. · nbteditor.org, 5 Oct 2026
Where Chunkweave NBT Editor stands on Freedom251
- Minecraft World Editors#16 of 35