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2x2xKit

JSON Formatter & Validator

Format, validate and minify JSON data.

How this is calculated
Parses JSON and re-serializes it with indentation (or without, when minifying)

Assumptions used in this calculation

  • Key order: Object key order is preserved exactly as it appears in the input when re-serializing, per standard JS object iteration behavior.

About this calculator

The JSON formatter pretty-prints and validates JSON, showing a clear error message if the input is malformed, with an option to minify.

Worked example

{"a":1,"b":2}

Result: Pretty-printed JSON

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