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JSON Formatter Calculator - Format, Validate & Analyze JSON

Free JSON formatter to format, validate, and analyze JSON data. Pretty print, minify, sort keys, and get comprehensive JSON analysis with ourdeveloper tools platform.

Last updated: December 15, 2024

Syntax validation and error detection
Pretty print and minify options
Comprehensive JSON analysis

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JSON Formatter Calculator
Format, validate, and analyze JSON data with comprehensive tools for developers

JSON Formatter Calculator Types & Features

JSON Validator
Validate JSON syntax and detect errors with detailed error messages

Error detection

Syntax Validation

Detect and report JSON syntax errors with precise error messages

JSON Pretty Print
Format JSON with proper indentation and line breaks for readability

Formatting options

Customizable Indentation

Choose indentation size and formatting style for better readability

JSON Minifier
Minify JSON by removing unnecessary whitespace and formatting

Size optimization

Maximum Compression

Reduce file size by removing all unnecessary whitespace and formatting

JSON Key Sorter
Sort JSON object keys alphabetically for consistent structure

Key organization

Alphabetical Sorting

Organize object keys alphabetically for better consistency and comparison

JSON Analyzer
Analyze JSON structure with comprehensive statistics and insights

Structure analysis

Detailed Statistics

Get insights into JSON structure, data types, and complexity metrics

JSON Comment Remover
Remove comments from JSON-like files for standard JSON compliance

Standardization

Comment Removal

Clean JSON files by removing comments and non-standard elements

Quick Example Result

For a sample JSON object with formatting:

Objects

2

Arrays

1

Max Depth

2

How Our JSON Formatter Calculator Works

Our JSON formatter uses JavaScript's built-in JSON parsing and stringifying methods with advanced formatting options. The process involves developer tools principles to validate, format, and analyze JSON data with comprehensive error detection and structure analysis.

JSON Processing Method

1. Parse JSON → 2. Validate Syntax → 3. Apply Formatting → 4. Generate Output
Error Detection: JSON.parse() with try-catch
Formatting: JSON.stringify() with custom options
Analysis: Recursive object traversal

The formatter processes JSON through multiple stages: validation, formatting, and analysis. Each stage provides specific functionality for different use cases in web development.

🔧 JSON Processing Pipeline

Shows the systematic approach to JSON formatting and validation

Technical Foundation

JSON formatting is based on the official JSON specification (RFC 7159) and uses JavaScript's native JSON methods for parsing and stringifying. The formatter implements additional features like key sorting, comment removal, and structure analysis to provide comprehensive JSON processing capabilities.

  • JSON.parse() for syntax validation and error detection
  • JSON.stringify() with custom replacer and space parameters
  • Recursive object traversal for structure analysis
  • Regular expressions for comment and trailing comma detection
  • Custom sorting algorithms for key organization
  • Error handling with detailed error messages
  • Statistics calculation for data type analysis

Sources & References

  • JSON.org - Official JSON Specification and DocumentationComplete reference for JSON format and standards
  • MDN Web Docs - JSON.parse() and JSON.stringify() MethodsComprehensive documentation for JavaScript JSON methods
  • RFC 7159 - The JavaScript Object Notation (JSON) Data Interchange FormatOfficial JSON specification and format definition

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JSON Formatter Calculator Examples

JSON Formatting Example
Format a sample JSON object with different formatting options

Input JSON:

{"name":"John","age":30,"city":"NY","hobbies":["reading","coding"],"address":{"street":"123 Main St","zip":"10001"}}

Formatted Output (2 spaces):

{
  "name": "John",
  "age": 30,
  "city": "NY",
  "hobbies": [
    "reading",
    "coding"
  ],
  "address": {
    "street": "123 Main St",
    "zip": "10001"
  }
}

Analysis Results: 2 objects, 1 array, 7 strings, 1 number, max depth 2

The formatter validates syntax, applies formatting, and provides comprehensive structure analysis.

Invalid JSON Example

Missing comma: {"name":"John" "age":30}

Error: Expected ',' after 'name'

Minified Output

Compact format for production

{"name":"John","age":30}

Frequently Asked Questions

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