HTML to YAML Converter

About HTML to YAML Converter

Convert HTML documents to YAML (YAML Ain't Markup Language) data serialization format. YAML is a human-friendly data format commonly used for configuration files, data exchange, and structured data storage.

Key Features

• Nested Structure: Preserves HTML hierarchy in YAML format
• Attribute Support: Converts HTML attributes to YAML key-value pairs
• Flat Mode: Option to flatten structure for simpler output
• Comments: Includes generation timestamp and metadata
• Link Extraction: Extracts all links into organized lists
• Image Extraction: Captures image sources and alt text
• Multi-line Strings: Supports multi-line text with pipe notation

How to Use

1. Input HTML: Paste your HTML code or upload an .html file
2. Configure Options: Choose structure and formatting options
3. Review Output: The YAML output updates automatically
4. Copy or Download: Use the Copy or Download button to save your .yaml file

Output Modes

• Nested Structure: Preserves full HTML hierarchy with nested objects
• Flat Structure: Extracts content, links, and images into separate sections
• With Attributes: Includes all HTML attributes in the output
• With Comments: Adds generation timestamp and documentation

YAML Syntax Examples

# Nested structure example
document:
  title: "My Document"
  body:
    - tag: "h1"
      text: "Main Heading"
    - tag: "p"
      text: "Paragraph content"
      children:
        - tag: "strong"
          text: "bold text"

# Flat structure example
document:
  title: "My Document"
  content: |
    All text content
    on multiple lines

links:
  - text: "Example"
    url: "https://example.com"

images:
  - src: "logo.png"
    alt: "Logo"

Common Use Cases

• Configuration Files: Convert HTML data to YAML config format
• Data Export: Export HTML content as structured YAML
• Content Migration: Migrate HTML content to YAML-based systems
• Static Site Generators: Prepare content for Jekyll, Hugo, etc.
• API Configuration: Create API configs from HTML documentation
• Metadata Extraction: Extract structured metadata from HTML

YAML Features

• Key-Value Pairs: Simple key: value syntax
• Lists: Dash notation for arrays (- item)
• Nested Objects: Indentation-based hierarchy
• Multi-line Strings: Pipe (|) for literal blocks
• Comments: Lines starting with # for documentation
• Human Readable: Clean, minimal syntax

Indentation

YAML uses indentation to represent structure. The converter supports customizable indent sizes (2-8 spaces). Standard practice is 2 spaces per level.

Tips for Best Results

• Choose Mode: Use nested for full structure, flat for simplified output
• Clean HTML: Well-structured HTML produces better YAML
• Attributes: Enable attributes to capture all HTML metadata
• Review Output: Check the YAML syntax for your use case
• Validate: Use a YAML validator to ensure valid output

Privacy & Security

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