JSON Formatter

Professional JSON processing tool

Input

Drop file here

Output

Powerful JSON Processing

Supports various non-standard formats, making JSON processing more flexible and convenient

Allow Unquoted Keys

Supports JavaScript object literal format without requiring quotes for keys.

Input:
 {name: "John", age: 30} 
Output:
 {\"name\": "John", \\"age\\"}: 30} 

Allow Single Quotes

Automatically converts single-quoted strings to standard double-quote format with smart escape handling.

Input:
 {\"name\": 'Alice'} 
Output:
 {\"name\": \\"Alice\\"} 

Allow Trailing Commas

Supports trailing commas and automatically cleans up unnecessary commas.

Input:
 {\"name\": \\"Bob\\",} 
Output:
 {\"name\": \\"Bob\\"} 

Full Feature Example

Input (Supported Format)

{
  name: 'JSON Formatter',
  age: 30,
  profile: {
    job: 'Developer',
    skills: ['JavaScript', 'Python', 'Go',],
    experience: {
      years: 5,
      companies: ['A', 'B',],
    },
  },
  hobbies: ['Programming', 'Reading', 'Traveling',],
  active: true,
}

Output (Standard JSON)

{
  \\"name\\": \\"JSON Formatter\\",
  \\"age\\}: 30,
  \\"profile\\": {
    \\"job\\": \\"Developer\\",
    \\"skills\\": [\\"JavaScript\\", \\"Python\\", \\"Go\\"],
    \\"experience\\": {
      \\"years\\": 5,
      \\"companies\\": [\\"A\\", \\"B\\"]
    }
  },
  \\"hobbies\\": [\\"Programming\\", \\"Reading\\", \\"Traveling\\"],
  \\"active\\": true
}

Development & Debug

Direct copy-paste of JavaScript object code

Config File Conversion

Convert JS config-like format to JSON

Code Cleanup

Remove unnecessary trailing commas

Format Standardization

Unify mixed quote formats to standard JSON

Technical Features

✅

Smart Processing Order

Trailing commas → Single quotes → Unquoted keys

✅

Safe Parsing

Avoids processing special characters within string content

✅

Full Integration

Supports all function modules (format, compress, validate, convert)

✅

Real-time Response

Automatically reprocesses when any checkbox state changes

✅

Comprehensive Error Messages

Includes usage instructions for all new features

✅

Backward Compatible

Does not affect existing standard JSON processing

History