JSON to YAML Converter

Convert JSON → YAML format in seconds.

YAML to JSON
JSON to YAML

About JSON (JavaScript Object Notation)

JSON is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. Despite its name suggesting a connection to JavaScript, JSON is language-independent and is used across many programming languages.

JSON is built on two structures: a collection of name/value pairs (similar to objects in various languages) and an ordered list of values (similar to arrays). Its simplicity and widespread support make it ideal for web APIs and data exchange.

Example:
{
  "name": "John Doe",
  "age": 30,
  "hobbies": ["reading", "coding", "traveling"],
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "zip": 10001
  }
}

About YAML (YAML Ain't Markup Language)

YAML is a human-readable data serialization standard that is commonly used for configuration files and in applications where data is being stored or transmitted. YAML's syntax is designed to be easily readable by humans while still being machine-parseable.

YAML uses indentation to represent nested structures and is often preferred over JSON for configuration files because of its clean, readable format. It supports comments, multi-line strings, and complex data types.

Example (from above JSON):
name: John Doe
age: 30
hobbies:
  - reading
  - coding
  - traveling
address:
  street: 123 Main St
  city: New York
  zip: 10001

How to Use This Converter

  1. Enter JSON Data: Paste or type your JSON data into the input text area, or upload a JSON file. Make sure your JSON is properly formatted with correct brackets and quotes.
  2. Convert: Click the "Convert JSON to YAML" button to process your data.
  3. View Result: The converted YAML data will appear in the output area.
  4. Copy or Download: Use the "Copy" button to copy the result to your clipboard, or "Download" to save it as a YAML file.
  5. Need the reverse? Click "YAML to JSON" above to convert in the opposite direction.

Why Convert JSON to YAML?

Configuration Files

YAML is more readable for configuration files, making it easier to manage settings and environments.

DevOps & CI/CD

Many DevOps tools like Docker Compose, Kubernetes, and GitHub Actions use YAML for configuration.

Documentation

YAML supports comments and is more human-readable, making it better for documented configurations.

Key Benefits of YAML

  • Human-readable: Clean syntax without brackets and quotes makes it easy to read
  • Comments support: Add explanatory comments directly in your configuration files
  • Multi-line strings: Handle long text values without complex escaping
  • Indentation-based: Visual structure makes nested data relationships clear
  • No quotes required: Most string values don't need quotation marks
  • Widely supported: Used by Docker, Kubernetes, Ansible, GitHub Actions, and more

Common JSON to YAML Use Cases

From API Responses

Convert API JSON responses to YAML for:

  • Creating test fixtures
  • Documentation examples
  • Configuration templates

Configuration Migration

Convert JSON configs to YAML for:

  • Docker Compose files
  • Kubernetes manifests
  • CI/CD pipeline definitions