JSON Formatter & Validator
Format, beautify, minify, and validate JSON data with syntax highlighting and error detection.
About JSON Formatting
JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's the most popular format for APIs, configuration files, and data storage. Properly formatted JSON is essential for debugging, code reviews, and maintaining readable codebases.
This formatter helps you beautify minified JSON by adding proper indentation and line breaks, or minify formatted JSON by removing all whitespace to reduce file size. It also validates your JSON syntax and detects errors instantly. Whether you're working with API responses, config files, or data analysis, this tool makes JSON easy to work with.
Examples:
- Minified:
{"name":"John","age":30} - Formatted:
{ "name": "John", "age": 30 }
Features of JSON Formatter
- Format & Beautify: Add proper indentation and line breaks for readability
- Minify: Remove all whitespace to reduce file size
- Validate: Check JSON syntax and detect errors
- Syntax Highlighting: Easy-to-read color-coded output
- Error Detection: Identify and locate JSON syntax errors
- Copy & Download: Save formatted JSON instantly
How to Use JSON Formatter
- Paste your JSON data into the input field
- Click "Format & Beautify" to add indentation and make it readable
- Click "Minify" to remove whitespace and compress the JSON
- Click "Validate" to check for syntax errors
- Copy the result or download it as a .json file
Common Use Cases
- API Development: Format API responses for debugging
- Configuration Files: Beautify config.json files
- Data Analysis: Make JSON data readable for analysis
- Code Review: Format JSON before committing to version control
- Learning: Understand JSON structure better with proper formatting
- Optimization: Minify JSON for production to reduce bandwidth
JSON Syntax Rules
- Data is in name/value pairs
- Data is separated by commas
- Curly braces hold objects
- Square brackets hold arrays
- Keys must be strings in double quotes
- Values can be strings, numbers, objects, arrays, true, false, or null