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
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JSON Formatter Calculator Types & Features
Error detection
Syntax Validation
Detect and report JSON syntax errors with precise error messages
Formatting options
Customizable Indentation
Choose indentation size and formatting style for better readability
Size optimization
Maximum Compression
Reduce file size by removing all unnecessary whitespace and formatting
Key organization
Alphabetical Sorting
Organize object keys alphabetically for better consistency and comparison
Structure analysis
Detailed Statistics
Get insights into JSON structure, data types, and complexity metrics
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.
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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Get Custom Developer Tool for Your PlatformJSON Formatter Calculator Examples
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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