JSON Formatter Tool - Format & Validate JSON Online

Input JSON

Output Result

About JSON Formatter Tool

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. JSON is one of the most popular data formats today, widely used in web development, API interfaces, configuration files, and more.

JSON Online Formatter Features

• JSON Formatting: Beautify compressed JSON data into an easy-to-read format
• JSON Minification: Remove spaces and line breaks from JSON to reduce data size
• JSON Validation: Check if JSON syntax is correct and quickly locate errors
• Syntax Highlighting: Color-coded display of JSON keys, values, numbers, booleans, etc.
• Custom Indentation: Support for 2, 4, 8 space indentation to meet different coding standards
• Error Messages: Detailed error information to help quickly fix JSON format issues

JSON Formatter Use Cases

• API Development: Format JSON data returned by APIs for easy debugging and viewing
• Data Debugging: Beautify compressed JSON to quickly identify data structure issues
• Configuration Files: Format JSON configuration files to improve readability
• Data Conversion: Quickly switch between JSON formatting and minification
• Code Review: Format JSON data for easier code review and team collaboration
• Learning JSON: Learn JSON data structures through the formatting tool

JSON Tool Features

• 100% Local Processing: All data is processed locally in your browser, not uploaded to servers
• Privacy & Security: Protect your sensitive data without worrying about data leaks
• Real-time Processing: Instantly format, minify, and validate JSON data
• Large File Support: Can handle large JSON files with excellent performance
• Free to Use: Completely free online JSON formatter tool
• No Installation Required: Use online without downloading or installing any software

Frequently Asked Questions

Q: Is the JSON formatter tool safe?

A: Completely safe. Our JSON formatter tool runs locally in your browser, all data processing is done on your device, nothing is uploaded to any server, protecting your data privacy.

Q: How to use the JSON formatter tool?

A: Paste your JSON data into the input box, click the "Format" button to beautify JSON; click "Minify" to remove spaces; click "Validate" to check if JSON syntax is correct.

Q: What size files does the JSON formatter support?

A: Our tool can handle large JSON files, the specific size depends on your browser performance. Generally, JSON files of several MB can be processed smoothly.

Q: What to do if JSON validation fails?

A: The tool will display detailed error information, including error location and reason. Fix JSON syntax errors according to the prompts, such as missing commas, mismatched quotes, etc.

Q: What is JSON Beautify?

A: JSON Beautify refers to formatting compressed JSON data into an easy-to-read format with indentation and line breaks, making the JSON structure clearer and easier to read and debug.