Raw JSON from an API is often a single unbroken line thousands of characters long — impossible to read and easy to break with a stray comma. A good JSON formatter turns that wall of text into a clean, indented tree and tells you exactly where any syntax error is.
Farvixo's JSON Formatter does this instantly in your browser: paste your JSON and it pretty-prints with proper indentation, collapsible nodes and syntax highlighting.
Beautify vs minify — use Beautify while you are reading or debugging a response, and Minify before shipping JSON in a payload or config where every byte counts. The tool does both with one click.
Validation is where it saves the most time. If your JSON is invalid, the formatter points to the offending line and character — a trailing comma, a missing quote, an unescaped character — instead of a vague "unexpected token" from your code.
Common fixes it surfaces: trailing commas after the last item, single quotes instead of double quotes, unquoted keys, and duplicate keys. All of these are silent killers in production and obvious in the formatter.
Everything runs locally, so you can safely paste responses that contain tokens or personal data without them leaving your machine. Pair it with our other developer tools — Base64, JWT decoder, URL encoder and more — for a full debugging toolkit. Format your JSON free with the Farvixo JSON Formatter.