Frequently Asked Questions
What is JSON formatting?▼
JSON formatting (also called "pretty-printing") adds proper indentation and line breaks to compressed JSON data, making it easier to read and debug. Our formatter uses 2-space indentation by default.
Is my JSON data safe when using this tool?▼
Yes. All processing happens entirely in your browser using JavaScript. Your JSON data is never sent to any server, stored, or logged. It stays completely private on your device.
What's the difference between Format and Minify?▼
Format adds whitespace and indentation for readability. Minify removes all unnecessary whitespace to produce the smallest possible output — useful for APIs, configuration files, and reducing payload sizes.
What JSON errors can this tool detect?▼
The validator catches all standard JSON syntax errors including: missing or extra commas, unquoted keys, single quotes instead of double quotes, trailing commas, unclosed brackets or braces, and invalid escape sequences.
Is there a size limit for JSON input?▼
There's no hard limit imposed by the tool. However, very large JSON files (over 10MB) may cause your browser to slow down. For extremely large files, consider using a desktop JSON editor or command-line tools like jq.