TULKIT

YAML to JSON Converter - Convert YAML to JSON Online Free

Convert YAML configuration files to JSON format instantly. Perfect for integrating YAML configs with JavaScript applications, REST APIs, and modern web development workflows.

Why Convert YAML to JSON?

  • API Compatible: JSON works with all REST APIs
  • JavaScript Native: Direct use in web applications
  • Universal Support: Supported by virtually all languages
  • Data Processing: Easier to manipulate programmatically

Common Use Cases

⚙️ Config Processing

Process YAML configs in JavaScript apps.

📡 API Requests

Send YAML data to JSON-based APIs.

🔄 Format Migration

Migrate configurations from YAML to JSON.

🧪 Testing

Convert test fixtures for JavaScript tests.

How to Use This Tool

  1. Paste YAML: Enter your YAML configuration or data.
  2. Convert: Click to parse and transform to JSON format.
  3. Copy or Download: Use the JSON output in your application.

💡 Tip: YAML comments will be stripped in the JSON output as JSON doesn't support comments.

YAML to JSON Converter

YAML to JSON Conversion Example

YAML Input

server:
  host: localhost
  port: 8080
  ssl: true
  # Database config
  database:
    name: mydb
    user: admin

JSON Output

{
  "server": {
    "host": "localhost",
    "port": 8080,
    "ssl": true,
    "database": {
      "name": "mydb",
      "user": "admin"
    }
  }
}

YAML Syntax Quick Reference

  • Key-Value: key: value
  • Arrays: - item1 or [item1, item2]
  • Nested Objects: Indented lines (2 or 4 spaces)
  • Comments: Lines starting with #
  • Booleans: true, false, yes, no
  • Null: null or ~

Common YAML Features

  • Docker Compose files (docker-compose.yml)
  • Kubernetes manifests
  • GitHub Actions workflows (.github/workflows/*.yml)
  • Ansible playbooks
  • Travis CI, CircleCI configurations

Important Notes

  • YAML is indentation-sensitive - use spaces, not tabs
  • Comments in YAML will not appear in JSON output
  • YAML supports more data types than JSON (dates, null variations)
  • Anchor references (& and *) in YAML may not convert perfectly

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