NZB Decoder

A fast NZB decoder for developers and power users to extract file lists, segments, and post details from NZB files.

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1,448+

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 NZB 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

NZB Decoder reads NZB XML files and exposes a structured view of their contents. It targets developers, automation engineers, and power users who need reproducible metadata from Usenet releases without manual XML parsing.
Conceptually, it parses the XML to locate file nodes, each file's name, size, and associated segment ranges, and links these files to their posting groups. It then aggregates totals per file and per NZB, producing a deterministic data model suitable for pipelines.
Key value includes not performing downloads or network requests, ensuring safety and speed. The tool outputs machine-friendly records that can feed validation checks, download managers, or indexing services. It supports optional filters to focus on specific groups or file patterns.
Use cases include QA validation of NZB integrity, automation of download queues, and extraction for archival indexing. The decoder is designed to be deterministic, portable, and easy to integrate into CI/CD, data processing, or Usenet archival workflows.

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How to Use

Upload an NZB file or provide NZB data via URL.
Configure decode options such as group and file filters or depth.
Run the decoder to parse NZB XML and generate structured records.
Review outputs and export to JSON or CSV for downstream processing.
Integrate the decoder into automation pipelines or validation jobs.

Frequently Asked Questions

Find Quick Answers

What is an NZB file?

An NZB file is an XML index of Usenet posts that describes groups, post IDs, segments, and sizes for a binary release. It does not contain the actual data, only metadata used to locate and assemble content.

What data does the decoder produce?

For each file contained in the NZB, the decoder outputs name, size, and segment counts, plus the associated posting group and per-file details. It also provides per-NZB totals and supports downstream processing via structured records.

Can I export the results?

Yes. The decoder supports exporting outputs to JSON and CSV formats, enabling integration with pipelines, QA checks, and archival indexing without manual reformatting.

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