YAML to JSON Converter
Convert YAML to JSON instantly online. Our free tool helps developers transform YAML data into properly formatted JSON with customizable indentation, error detection, and validation. Perfect for configuration files and data interchange.
Convert YAML to JSON instantly online. Our free tool helps developers transform YAML data into properly formatted JSON with customizable indentation, error detection, and validation. Perfect for configuration files and data interchange.
All processing happens in your browser - no data is sent to any server. Format unlimited files with confidence, knowing your code remains private and secure.
YAML Input
Instant Conversion
Convert YAML to JSON instantly with proper formatting and validation.
Customizable Indentation
Choose between 2, 4, or 8 spaces for perfect JSON formatting.
Error Detection
Get clear error messages for invalid YAML syntax.
Key Features
Customizable Indentation
Choose between 2, 4, or 8 spaces for perfect JSON formatting.
Error Detection
Get clear error messages for invalid YAML syntax.
One-Click Copy
Copy converted JSON to clipboard with a single click.
Sample Data
Load sample YAML data to see the converter in action.
Examples
Simple Configuration:
Basic YAML configuration with nested properties.
Input:
server: host: example.com port: 8080 ssl: true timeout: 30s
Output:
{
"server": {
"host": "example.com",
"port": 8080,
"ssl": true,
"timeout": "30s"
}
}Complex Structure:
Complex YAML structure with arrays and nested objects.
Input:
app:
name: My App
features:
- authentication
- authorization
settings:
cache:
enabled: true
ttl: 3600
logging:
level: debug
file: app.logOutput:
{
"app": {
"name": "My App",
"features": [
"authentication",
"authorization"
],
"settings": {
"cache": {
"enabled": true,
"ttl": 3600
},
"logging": {
"level": "debug",
"file": "app.log"
}
}
}
}How to Use
Paste YAML
Copy your YAML data and paste it into the input area, or use the Load Sample button to try with example data.
Choose Format Options
Select your preferred JSON indentation size from the dropdown menu (2, 4, or 8 spaces).
Convert
Click the "Convert to JSON" button to instantly transform your YAML into properly formatted JSON.
Copy Result
Review the converted JSON and use the "Copy" button to copy it to your clipboard.
Frequently Asked Questions
What is the YAML to JSON converter?
Our YAML to JSON converter is a free online tool that instantly converts YAML (YAML Ain't Markup Language) data into JSON (JavaScript Object Notation) format. It supports complex YAML structures, provides customizable indentation, and includes error detection for invalid syntax.
Is my YAML data secure when using the converter?
Yes! All conversion happens directly in your browser. We never store or transmit your YAML data to any server, ensuring 100% privacy and security.
Can I customize the JSON output format?
Yes! You can choose between different indentation sizes (2, 4, or 8 spaces) to match your preferred coding style. The converter maintains proper JSON formatting while allowing you to customize the presentation.
What types of YAML can I convert?
Our converter supports all standard YAML features including scalars, sequences (arrays), mappings (objects), nested structures, and multi-document YAML. It can handle both simple and complex YAML structures.
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