NETCUE TECHNOLOGY: We Rescue Networks

JSON Validator

Validate JSON syntax and check for structural errors in your data.

Validation Results:

JSON Syntax Rules

JSON must follow strict syntax rules to be valid:

  • Data is in name/value pairs: "name": "value"
  • Data is separated by commas
  • Curly braces hold objects: { }
  • Square brackets hold arrays: [ ]
  • Strings use double quotes only
  • Valid data types: string, number, object, array, boolean, null

Common JSON Errors

Error Type Example Fix
Missing comma {"name": "John" "age": 30} Add comma: {"name": "John", "age": 30}
Single quotes {'name': 'John'} Use double quotes: {"name": "John"}
Trailing comma {"name": "John",} Remove comma: {"name": "John"}
Unescaped quotes {"text": "He said "hello""} Escape quotes: {"text": "He said \"hello\""}
Invalid number {"age": 30.} Fix number: {"age": 30}

Valid JSON Examples

Simple Object

{
  "name": "John Doe",
  "age": 30,
  "isStudent": false
}

Array

[
  "apple",
  "banana",
  "cherry"
]

Nested Structure

{
  "user": {
    "name": "John",
    "profile": {
      "age": 30,
      "hobbies": ["reading", "coding"]
    }
  }
}

JSON Schema Validation

While this tool validates basic JSON syntax, for advanced validation against a schema, consider using:

  • JSON Schema specification
  • Schema validation libraries
  • Online JSON Schema validators

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