BSON Formatter

A fast BSON formatter for developers and data engineers to convert and beautify BSON data into JSON for readability and validation.

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716+

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 BSON Formatter 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

The tool accepts BSON-encoded input and outputs a JSON representation. It is designed for developers and data teams who work with MongoDB or BSON payloads and need readable, validated output. Conceptually, it decodes the binary BSON into a structured document and then serializes that structure to JSON, preserving hierarchy and data types as closely as possible. Users can choose between a pretty-printed JSON with indentation or a compact form for script-based processing. The formatter maps BSON types to JSON types (ObjectId to 24-hex string, Date to ISO-8601 UTC, Binary to base64) and reports any parsing errors with precise locations and reasons. Core value lies in reducing manual conversion effort, enabling quick debugging, and supporting data documentation. Typical use cases include inspecting API traces, validating data exchanged with MongoDB, and preparing BSON samples for technical documentation. Unique differentiators are strict validation, support for common BSON types, and configurable output formatting, all without requiring local tooling. The tool is intended for technical roles that regularly translate binary data into a human-readable JSON form and integrate the result into logs, tests, or data pipelines.

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How to Use

Provide inputs: supply BSON data as hex string, base64 string, or raw BSON bytes.
Choose format: select pretty (2-space indentation) or compact output.
Run conversion: the tool decodes BSON and serializes to JSON.
Review outputs: inspect the JSON result and any validation messages.
Validate data: verify ObjectId strings, dates, and binary data in the output.

Frequently Asked Questions

Find Quick Answers

What input formats are supported?

The formatter accepts hex-encoded BSON, base64-encoded BSON, or raw binary bytes depending on runtime. It automatically detects the encoding when possible and provides a clear error if the input cannot be parsed as BSON.

How are dates and ObjectId represented in JSON?

Dates are output as ISO 8601 strings in UTC. ObjectId values become 24-hex strings. Other BSON types map to their closest JSON equivalents while preserving document structure.

What happens if the input is invalid?

Invalid BSON triggers a descriptive error with location and type information. No JSON output is produced for malformed input; the error helps diagnose truncated data, unknown type codes, or mis-encoded fields.

Is it suitable for large BSON documents?

Formatting large documents is supported within memory limits. For extremely large payloads, consider chunked processing or streaming workflows to avoid high memory usage.

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