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Chunkweave NBT Editor

Chunkweave NBT Editor is a free browser tool for inspecting and editing structured data from Minecraft Java Edition.

Place
#17 of 35
Score
6.0
Chunkweave NBT Editor's website

What Chunkweave NBT Editor is

Chunkweave NBT Editor is a free browser tool for inspecting and editing structured data from Minecraft Java Edition. It displays NBT data as a typed tree, where users can search nested tags and change values while retaining their types. It supports .nbt, .dat, .mca, .mcr and .schematic files, including level.dat, playerdata and other compressed NBT containers. Structure files can show structure blocks, entities, palettes and metadata. For Anvil region files, a 32×32 map shows populated chunks before a user opens one for inspection. Parsing and rebuilding happen in a browser Web Worker. Chunkweave says files opened in the editor are not uploaded, stored or received by the service; edits are downloaded as a separate file, leaving the original untouched. Undo and redo controls are available before download. The editor requires no account or payment and has no cloud storage. It is intended for local manual inspection and editing, not API-based automation. It runs on the web and has no Windows, macOS or Linux desktop installer.

Good

  • Supports five listed file extensions.
  • Displays NBT as a searchable typed tree.
  • Edits are downloaded separately from the original.
  • No account, payment or cloud storage required.

Watch out

  • No Windows, macOS or Linux desktop installer.
  • Not intended as an automation API.
  • Terrain editing and batch operations are not supported.

Who it suits

Chunkweave suits Minecraft Java Edition players, map makers, server administrators and technical creators who want to inspect or edit supported files in a browser. It is for manual work, not API automation.

Verdict

Chunkweave provides local browser-based NBT inspection and editing for Minecraft Java Edition files. Its main constraints are the lack of a desktop installer and automation API.

Plans and prices

From Chunkweave NBT Editor's own pricing page, checked 5 Oct 2026.

All about pricing
PlanPriceWhat it gives you
FreeFreeBrowser-based editor · no account, payment, or cloud storage · supports Java Edition .nbt, .dat, .mca, .mcr, and .schematic files

The facts

Each one read from Chunkweave NBT Editor's own pages, with the date it was checked.

What it does

Audience
The maker describes it as intended for players, map makers, server administrators, and technical creators.checked 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.checked 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.checked 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.checked 5 Oct 2026
Purpose
Chunkweave edits structured Minecraft Java Edition data in a browser.checked 5 Oct 2026
Region browsing
For Anvil regions, it shows populated chunks on a 32×32 map before opening their NBT.checked 5 Oct 2026
Separate-copy export
Edits are rebuilt locally and downloaded as a separate file, leaving the original untouched.checked 5 Oct 2026
Structures
For structure files, it can inspect structure blocks, entities, palettes, and metadata.checked 5 Oct 2026
Support
The maker lists email contact for privacy, support, and product questions.checked 5 Oct 2026
Supported files
It supports .nbt, .dat, .mca, .mcr, and .schematic files.checked 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.checked 5 Oct 2026
Undo and redo
The workspace includes undo and redo controls before download.checked 5 Oct 2026
World and player data
It can edit level.dat, playerdata, and other compressed NBT containers.checked 5 Oct 2026

Where it runs

Platform limit
Chunkweave is browser-based and does not offer a Windows, macOS, or Linux desktop installer.checked 5 Oct 2026

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