Structures Knowledge Base

Mastering JSON Objects

Complete guide to JSON objects: key-value pairs, nested structures, valid keys, and schema definition techniques.

JSON Object Architecture

A JSON object is an unordered set of key-value pairs enclosed in curly braces ({ }). Every key must be a double-quoted string followed by a colon.

json
{
  "company": "Tech Corp",
  "departments": {
    "engineering": 50,
    "design": 15
  }
}

Try the free JSON Schema Generator

Runs entirely in your browser — no upload, no signup, and your data never leaves your device.

Open JSON Schema Generator

Frequently Asked Questions

Can JSON object keys be numbers or unquoted strings?

No. JSON object keys must strictly be double-quoted strings.

Related JSON Topics & Reference Articles