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HTML to Avro Converter

Transform HTML into Apache Avro schema and data

HTML Input

Avro Output

About HTML to Avro Converter

Convert HTML documents to Apache Avro schema and data format. Avro is a data serialization system that provides rich data structures, a compact binary format, and schema evolution capabilities.

Key Features

  • Schema Generation: Automatically generates Avro schema from HTML structure
  • Data Extraction: Extracts structured data including headings, paragraphs, links, images, and lists
  • Type Safety: Uses Avro's type system with records, arrays, enums, and unions
  • Metadata Support: Captures document metadata like charset, description, and keywords
  • Flexible Output: Generate schema only or schema with extracted data
  • Customizable: Set custom schema names and namespaces

How to Use

  1. Input HTML: Paste your HTML code or upload an .html file
  2. Configure Options: Choose whether to include extracted data and set schema name
  3. Review Output: The Avro schema/data updates automatically in JSON format
  4. Copy or Download: Use the Copy or Download button to save your output

Avro Schema Structure

The generated schema includes the following fields:

  • title: Document title from <title> tag
  • headings: Array of all headings (h1-h6) with level and text
  • paragraphs: Array of paragraph text content
  • links: Array of hyperlinks with href and text
  • images: Array of images with src and alt attributes
  • lists: Array of ordered/unordered lists with items
  • metadata: Document metadata (charset, description, keywords)

Common Use Cases

  • Data Pipelines: Convert web content for Apache Kafka, Hadoop, or Spark processing
  • Schema Evolution: Define versioned schemas for HTML content
  • API Integration: Serialize HTML data for Avro-based APIs
  • Data Analysis: Extract structured data from HTML for analytics

About Apache Avro

Apache Avro is a data serialization framework developed within Apache's Hadoop project. It provides:

  • Rich data structures with complex types
  • Compact, fast binary data format
  • Container file for storing persistent data
  • Remote procedure call (RPC) support
  • Schema evolution without breaking compatibility

Privacy & Security

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