JSON Formatter

Easily format, minify, and beautify JSON data for improved readability and optimized usage.

Configuration

Indentation

Select the indentation style.

Sort Keys

Sort the keys of the JSON object.

Input

Output

About JSON Formatter

Format, beautify, validate, and minify JSON online. Paste raw or minified JSON and get cleanly indented, readable output — choose between 2 spaces, 4 spaces, tab indentation, or full minification for the smallest payload.

The formatter parses your input with the browser’s native JSON engine, so invalid JSON is caught immediately with an error message. Everything runs client-side: your API responses, configs, and payloads never leave your device.

Key Features

  • Beautify JSON with 2-space, 4-space, or tab indentation
  • Minify JSON to a single compact line
  • Instant validation with clear syntax errors
  • Handles large documents, entirely in your browser

Frequently Asked Questions

How do I format JSON online?

Paste your JSON into the editor, pick an indentation style, and the formatted result appears instantly. Use the copy button to grab the output.

Can this tool minify JSON?

Yes. Select the Minify option to strip all whitespace and produce the most compact valid JSON, which reduces payload size for APIs and storage.

What happens if my JSON is invalid?

The tool validates your input as it parses it and shows a syntax error instead of output, so you can spot missing commas, unquoted keys, or trailing characters quickly.

Is my JSON data private?

Yes. Formatting happens entirely in your browser — the JSON you paste is never uploaded, logged, or stored on any server.