Minecraft NBT Decoder

A free online tool that decodes Minecraft NBT data into readable structures for modders, developers, and server admins.

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1,572+
Total Calculations Run
< 15ms
Browser Execution Speed
100%
Client-Side Privacy
4.9 / 5.0
User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Minecraft NBT Decoder processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}
Computed Result { "id": 1, "status": "active", "roles": [ "admin" ] }
Execution Mode Client-Side In-Browser JS
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About This Tool

This tool decodes Minecraft NBT data into a structured, human-readable form for developers and server operators. It accepts textual SNBT input representing items, entities, blocks, or world data and outputs a parsed tree with type, value, and hierarchical relationships. The approach emphasizes data accessibility for troubleshooting, data validation, and tool integration. It produces both machine-friendly JSON for automation and a readable summary for quick inspection. Use cases include verifying new items' NBT when modding, auditing entity data on a server, or generating summaries for data pipelines and documentation. The decoder supports primitive tag types (byte, short, int, long, float, double, string) as well as arrays and container types (list, compound). A robust, recursive engine ensures nested structures are expanded and preserved in the resulting JSON, with well-defined paths to any field. The tool is designed to be deterministic, with clear error reporting and stable outputs across runs, which is critical for automated modding workflows.

How to Use

  1. Provide inputs: paste the NBT/SNBT string into the input field.
  2. Choose decoding options: set depth limit and output format (JSON and pretty text).
  3. Run decode: execute the parser to generate structured data.
  4. Review outputs: inspect the JSON tree and the human-readable summary for accuracy.
  5. Export results: copy JSON or save as a file for pipelines.
How to use minecraft nbt decoder

Frequently Asked Questions

Find Quick Answers

What input formats are supported?
The tool accepts textual SNBT representations of NBT data. It does not process raw binary NBT. If the SNBT is malformed, the parser reports the error position and suggests the likely mismatch to guide correction.
Can it handle deeply nested structures?
Yes. The parser recursively traverses compounds and lists to produce a full tree. A configurable depth limit prevents excessive resource use. Large or deeply nested data will yield a truncated view if depth is restricted.
What outputs are produced?
Two outputs are provided: a machine-friendly JSON tree suitable for pipelines and a human-friendly pretty-printed summary for inspection. Both outputs reflect the exact tag types and values found in the input.
How reliable is the parsing?
The parser adheres to standard NBT tag types and SNBT syntax. Unknown or non-standard tags are reported without aborting parsing, and the tool returns a best-effort representation with detailed diagnostics.

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