Free Online JSON to YAML Converter

JSON to YAML conversion is the process of transforming JavaScript Object Notation (JSON) data into YAML (YAML Ain't Markup Language) format. JSON is commonly used for APIs and data interchange, while YAML is the standard for configuration files in DevOps tools like Kubernetes, Docker, Ansible, GitHub Actions, and CI/CD pipelines. Our free online JSON to YAML converter makes this transformation seamless. YAML offers superior readability with clean indentation instead of brackets and quotes.

When you convert JSON to YAML, curly braces become indentation, square brackets become dashes, and quotes are removed where not needed. This transformation makes configuration files dramatically easier to read and edit for humans while maintaining full data compatibility. YAML is actually a superset of JSON, meaning any valid JSON is also valid YAML. This JSON to YAML converter tool handles all JSON structures automatically.

{
  "server": {
    "host": "localhost",
    "port": 3000
  },
  "features": ["auth", "api"]
}

server:
  host: localhost
  port: 3000
features:
  - auth
  - api

How the Conversion Works

• •Parsing: The JSON string is parsed into a data structure
• •Indentation: Curly braces are replaced with indented lines
• •List Formatting: Arrays are converted to dash (-) prefixed lists
• •Quote Removal: Simple values don't need quotes in YAML
• •Nesting: Hierarchical structure is preserved through indentation levels

The conversion process handles complex JSON structures including nested objects, arrays of objects, mixed data types, and special characters. The resulting YAML is properly indented, follows YAML syntax rules, and is ready to use in configuration files for Kubernetes deployments, Docker Compose services, Ansible playbooks, and GitHub Actions workflows. This JSON to YAML converter online ensures compatibility with all YAML based tools.

JSON to YAML conversion is essential for DevOps workflows, infrastructure as code, and modern deployment pipelines where YAML is the standard configuration format. It bridges the gap between API-friendly JSON and human-friendly YAML, making data transformation seamless between development and deployment environments. Our free JSON to YAML converter enables this transformation without requiring any software installation.