YAML to JSON Converter

A YAML to JSON Converter is a tool (online or offline) that converts data written in YAML format into JSON format.

YAML to JSON Converter

YAML Input
Input

Enter YAML or load sample data

JSON Output
Output

JSON output will appear here

About YAML to JSON Conversion

Convert YAML (YAML Ain't Markup Language) to JSON (JavaScript Object Notation) format.

  • Real-time conversion as you type
  • Supports nested objects and arrays
  • Handles YAML anchors and aliases
  • Preserves data types (strings, numbers, booleans)
  • Automatic indentation control
Conversion Features
  • Automatic type detection
  • Array and list handling
  • Multi-line string support
  • Comment preservation (where possible)
  • Error highlighting and validation
YAML vs JSON Comparison
YAML
server:
  port: 8080
  host: localhost
database:
  name: myapp
  credentials:
    username: admin
    password: secret
features:
  - auth
  - cache
  - api
JSON
{
  "server": {
    "port": 8080,
    "host": "localhost"
  },
  "database": {
    "name": "myapp",
    "credentials": {
      "username": "admin",
      "password": "secret"
    }
  },
  "features": [
    "auth",
    "cache",
    "api"
  ]
}
Common YAML Patterns
Simple Key-Value
name: John Doe
Arrays/Lists
fruits:\n  - apple\n  - banana
Nested Objects
person:\n  name: John\n  age: 30