JSON Formatter

Beautify, validate and minify JSON with precise error locations. Format and validate JSON online. Pretty-print with 2 or 4 spaces, minify, and pinpoint syntax errors with line and column. Free JSON beautifier for developers.

Esta ferramenta roda 100 % no seu navegador. O que você digita nunca é enviado a servidor algum: você pode até ficar offline depois de carregar a página.

Sobre o JSON Formatter

A single misplaced comma can break a 2,000-line config file. Paste any JSON here to pretty-print it with your preferred indent, minify it for production, or validate it with error reporting that points to the exact line and column of the problem. The formatter handles large payloads, preserves your data exactly, and includes a key-sorting option for diff-friendly output — all locally in your browser.

Como usar o JSON Formatter

  1. Paste your raw or minified JSON into the editor.
  2. Click Format to pretty-print, or Minify to compact it.
  3. Fix any syntax error where the validator points you.
  4. Copy the result back into your project.

Principais recursos

Is my JSON sent to a server?
No. Parsing and formatting happen in your browser with the native JSON engine, so API responses, secrets and config files stay on your machine.
What JSON dialect is supported?
Standard JSON as defined by RFC 8259 — the same rules used by JSON.parse. Trailing commas, comments and single quotes are invalid and will be reported as errors.

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