JSON Formatter is a professional online tool for formatting, beautifying, and validating JSON data. Whether you're debugging APIs, editing config files, or analyzing data, this tool helps you quickly process JSON with real-time preview and error detection.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight, language-independent data interchange format. It's easy for humans to read and write, and easy for machines to parse and generate. JSON has become the de facto standard for web API data exchange, replacing XML in many scenarios.
Key Features
- Beautify/Format: Convert minified JSON into readable, properly indented format with customizable indentation (2 spaces, 4 spaces, or tabs)
- Minify/Compress: Remove all whitespace and line breaks to reduce file size for production use
- Validate: Instantly detect syntax errors with clear error messages and line numbers
- Real-time Preview: See formatted results as you type with instant feedback
Common Use Cases
Developers use JSON formatters daily for API debugging, config file editing, log analysis, and data transformation. When working with REST APIs, you'll often receive minified JSON responses that are difficult to read. This formatter makes the data structure clear at a glance, helping you identify issues faster.
FAQ
Q: What's the difference between beautify and minify?
A: Beautify (format) adds proper indentation and line breaks to make JSON readable. Minify removes all unnecessary whitespace to reduce file size. Use beautify for development/debugging and minify for production.
Q: How do I fix JSON parse errors?
A: Common JSON errors include: missing quotes around strings, trailing commas, single quotes instead of double quotes, and unescaped special characters. The validator will highlight the exact location of syntax errors.
Q: Is my JSON data secure?
A: Yes. All processing happens entirely in your browser. Your JSON data is never sent to any server, ensuring complete privacy and security.