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JSON Formatter

Paste JSON to validate, pretty-print, or minify. Errors are pinpointed with line/column. Browser-only.

100% in your browser. Files never uploaded.
Output
Result will appear here.

How to use

  1. 1
    Paste JSON
    Validates as you type. Errors include line and column.
  2. 2
    Pick output style
    2-space, 4-space, or minified.
  3. 3
    Copy or download
    One click to copy to clipboard or save as a .json file.

FAQ

Is my JSON sent anywhere?
No. Parsing and formatting happen entirely in your browser using the native JSON.parse / JSON.stringify.
Will it preserve key order?
Yes — JavaScript JSON.stringify preserves the order keys were inserted in.

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