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Payload Studio

JSON Formatter & Minifier

Validate, format and minify JSON locally without sending data to any server.

Your data stays in your browser.

Tool guide

About the JSON formatter

Make JSON easier to read or compact it for transport while checking that the payload is valid JSON.

What it does

  • Formats JSON with consistent indentation.
  • Minifies valid JSON without changing its values.
  • Reports validation errors with a line and column when available.
  • Lets you copy or download the generated result.

How to use it

  1. Paste JSON into the input editor.
  2. Choose Format or Minify.
  3. Review the validation status and generated output before copying or downloading it.

Notes

Formatting does not sort object keys and validation does not apply a JSON Schema. The tool checks JSON syntax only.

Privacy

Formatting and validation run locally in your browser. The JSON payload is not uploaded for processing.