JSON Validator

About JSON Validation

JSON (JavaScript Object Notation) has strict syntax rules. Our validator checks your JSON against these rules and provides clear error messages when issues are found.

JSON Syntax Rules

• Data is in name/value pairs
• Data is separated by commas
• Curly braces hold objects: { }
• Square brackets hold arrays: [ ]
• Strings must use double quotes: "text"
• No trailing commas allowed
• No comments allowed

Valid Data Types

• String: "Hello World"
• Number: 42 or 3.14
• Boolean: true or false
• Null: null
• Array: [1, 2, 3]
• Object: {"key": "value"}