XML to YAML Converter

About XML to YAML Converter

Convert XML data to YAML (YAML Ain't Markup Language) format, a human-readable data serialization format used for configuration files, data exchange, and more.

Key Features

• Automatic Type Detection: Recognizes strings, integers, floats, booleans, dates, and null values
• Block & Flow Styles: Choose between readable block style or compact flow style
• Custom Indentation: Configure indent size (2-8 spaces)
• Comments: Optional comment headers and item labels
• Key Sanitization: Converts XML tags to valid YAML keys
• File Upload: Upload .xml files directly
• Copy & Download: Easy export as .yaml or .yml file

How to Use

1. Input XML Data: Paste your XML data or upload an .xml file
2. Configure Options: Choose indentation, style, and comment preferences
3. Review Output: The YAML data generates automatically
4. Copy or Download: Use the Copy or Download button to save your YAML file

YAML Styles

• Block Style (Default): Multi-line, readable format with proper indentation
• Flow Style (Compact): Inline JSON-like syntax for compact representation

Example Conversion

XML Input:

<?xml version="1.0" encoding="UTF-8"?>
<employees>
  <employee>
    <name>Alice Johnson</name>
    <position>Software Engineer</position>
    <salary>95000</salary>
    <active>true</active>
  </employee>
  <employee>
    <name>Bob Smith</name>
    <position>Product Manager</position>
    <salary>105000</salary>
    <active>true</active>
  </employee>
</employees>

YAML Output (Block Style):

employees:
  - # Item 1
    name: Alice Johnson
    position: Software Engineer
    salary: 95000
    active: true
  - # Item 2
    name: Bob Smith
    position: Product Manager
    salary: 105000
    active: true

YAML Output (Flow Style):

employees:
  - {name: Alice Johnson, position: Software Engineer, salary: 95000, active: true}
  - {name: Bob Smith, position: Product Manager, salary: 105000, active: true}

Common Use Cases

• Configuration Files: Docker Compose, Kubernetes, Ansible, CI/CD pipelines
• Data Exchange: API responses, data serialization
• Documentation: OpenAPI/Swagger specifications
• Infrastructure as Code: CloudFormation, Terraform
• Application Config: Rails, Spring Boot, and other frameworks

Type Detection

The converter automatically detects and formats data types:

• Strings: Quoted if they contain special characters
• Integers: Whole numbers without quotes (e.g., 42)
• Floats: Decimal numbers without quotes (e.g., 3.14)
• Booleans: true or false (case-insensitive input)
• Dates: ISO 8601 format (e.g., 2024-01-15)
• Null: Empty values become null

YAML Benefits

• Human-Readable: Clean, intuitive syntax
• Minimal: Less verbose than XML or JSON
• Comments: Native support for comments
• Type-Safe: Automatic type inference
• Widely Supported: Used by many modern tools and frameworks
• Flexible: Supports complex data structures

Privacy & Security

All conversions happen locally in your browser. Your XML data is never uploaded to any server, ensuring complete privacy and security.

FAQs

• What XML structure is supported? A root element with repeated child elements (for example, multiple <employee> nodes) and consistent child tags is ideal for generating clean YAML lists.
• Block vs Flow style – which should I use? Block style is easier to read and edit by hand. Flow style is more compact and better when you need inline, JSON-like structures.
• How are types inferred? The tool detects integers, floats, booleans, ISO dates, and nulls; everything else is treated as a string, quoted when necessary.
• Is the output safe for Kubernetes/Docker Compose? Yes. The generated YAML follows standard syntax, but you may want to adjust top-level keys and indentation to match your specific manifest structure.
• Is my XML ever sent to a backend? No. All conversion logic runs inside your browser only.