JSON Formatter

Format and validate JSON data.

How to Do It Manually

JSON formatting adds indentation and line breaks for readability. Minification removes whitespace to reduce file size. Both are valid JSON.

  1. Paste or paste raw JSON.
  2. Format adds indentation (usually 2 or 4 spaces per level).
  3. Minify removes all unnecessary whitespace.
  4. Validate syntax (check for unclosed brackets, missing commas, etc.).

Frequently Asked Questions

What's valid JSON?

Objects in {}, arrays in [], strings in quotes, numbers unquoted, true/false/null lowercase. Keys must be strings.

Why format JSON?

Readable JSON is easier to debug and understand. Minified JSON is smaller for transmission.