What is JSON formatting?
JSON (JavaScript Object Notation) is a lightweight data-interchange format. While it's easy for machines to parse and generate, unformatted (or minified) JSON can be incredibly difficult for humans to read.
Our JSON Formatter (often called a JSON Beautifier) takes raw, unformatted JSON strings and introduces proper indentation, line breaks, and spacing, making the data structure visually comprehensible.
Local Processing for Maximum Privacy
Many online developer tools send your raw data to their backend servers for formatting. If your JSON contains API keys, passwords, or PII (Personally Identifiable Information), this is a massive security risk.
This tool runs entirely within your web browser using JavaScript's native JSON.parse() and JSON.stringify() methods. Your data never touches a server.
Features
- Instant Validation: Errors in your JSON syntax are highlighted immediately as you type.
- Custom Indentation: Choose between 2, 3, or 4 spaces to match your project's coding standards.
- Minification: Strip out all whitespace to compress the payload size for production environments.