JSON Formatter & Validator
Format, validate, and beautify JSON data with syntax highlighting. Minify JSON or expand with custom indentation.
Frequently Asked Questions
What is JSON formatting?
JSON formatting (also called pretty-printing) adds proper indentation and line breaks to JSON data, making it easier to read and debug. The opposite process, minification, removes all unnecessary whitespace to reduce file size.
How do I validate JSON?
Paste your JSON into the input field and click Format or Validate. If the JSON is invalid, you will see a detailed error message with the approximate line number where the error was found. Common issues include trailing commas, missing quotes, and unescaped special characters.
What indentation options are available?
You can choose between 2 spaces, 4 spaces, or tab characters for indentation. The default is 2 spaces, which is the most common standard in web development.
Can I minify JSON?
Yes, click the Minify button to remove all whitespace and line breaks from your JSON. This is useful for reducing payload size in APIs and configuration files.
Is this tool free to use?
Yes, this JSON formatter and validator is completely free with no signup required. All processing happens in your browser so your data never leaves your device.