JSON Formatter & Validator
Format, validate and auto-fix JSON instantly. Free, no signup, nothing stored.
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Frequently asked questions
What is a JSON formatter?
A JSON formatter takes raw, unformatted JSON data and converts it into a readable, indented structure. It makes JSON easier to read and debug by adding proper whitespace and line breaks.
Is my data safe when using this tool?
Yes, completely. Your JSON data is processed and immediately discarded. We never store, log, or share any data you paste into our tools. Nothing persists beyond your current session.
What is JSON validation?
JSON validation checks whether your JSON follows the correct syntax rules. Invalid JSON cannot be parsed by applications. Our validator highlights exactly which line contains the error.
What common JSON errors can this tool fix?
Our auto-fix feature can fix single quotes instead of double quotes, trailing commas, unquoted keys, incorrect boolean casing (True/False instead of true/false), and missing closing quotes.
What is the difference between format and minify?
Formatting adds indentation and line breaks to make JSON human-readable. Minifying removes all whitespace to make the file smaller — useful for production APIs where file size matters.
Can I format large JSON files?
Yes. TapTools handles large JSON files efficiently. For very large files you can also upload directly using the Upload button instead of pasting.