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JSON

Online JSON Formatter

Format, minify, and validate JSON online with editor input and tree preview.

JSON Editor

Tree Preview

What can this online JSON formatter do?

Paste JSON to format, minify, and validate it directly in your browser, with a tree view on the right. Your data is not sent to the server.

  • Format compact or messy JSON into readable, indented output.
  • Minify JSON by removing unnecessary spaces and line breaks.
  • Validate JSON automatically as the input changes.
  • Inspect objects, arrays, and nested fields in a tree view.