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HTML to RDF Converter

Transform HTML into RDF semantic data format

HTML Input

RDF Output

About HTML to RDF Converter

Convert HTML documents to RDF (Resource Description Framework) format for semantic web applications. RDF provides a standard way to represent information about resources on the web using subject-predicate-object triples.

Key Features

  • Multiple RDF Formats: Export to Turtle, N-Triples, or RDF/XML
  • Semantic Structure: Preserves HTML document structure as RDF triples
  • Metadata Support: Includes document title and description
  • Custom Base URI: Configure the base URI for your RDF resources
  • Element Attributes: Converts HTML attributes to RDF properties
  • Hierarchical Representation: Maintains parent-child relationships

RDF Formats

  • Turtle (.ttl): Human-readable format with compact syntax and prefixes
  • N-Triples (.nt): Simple line-based format, one triple per line
  • RDF/XML (.rdf): XML-based format for RDF data interchange

How to Use

  1. Input HTML: Paste your HTML code or upload an .html file
  2. Select Format: Choose your preferred RDF serialization format
  3. Configure Base URI: Set the base URI for resource identification
  4. Review Output: The RDF output updates automatically
  5. Copy or Download: Save your RDF file with the appropriate extension

RDF Vocabularies Used

  • rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# - Core RDF vocabulary
  • rdfs: http://www.w3.org/2000/01/rdf-schema# - RDF Schema vocabulary
  • dc: http://purl.org/dc/elements/1.1/ - Dublin Core metadata
  • html: http://www.w3.org/1999/xhtml/vocab# - HTML vocabulary

Common Use Cases

  • Semantic Web: Convert web content to machine-readable format
  • Linked Data: Create linked data from HTML documents
  • Knowledge Graphs: Build knowledge graphs from web content
  • Data Integration: Integrate HTML data with RDF datasets
  • Metadata Extraction: Extract structured metadata from HTML
  • Ontology Development: Create ontologies from HTML structures

Understanding RDF Triples

RDF represents information as triples consisting of:

  • Subject: The resource being described (e.g., a node in the HTML)
  • Predicate: The property or relationship (e.g., html:class, rdfs:label)
  • Object: The value or related resource (e.g., attribute values, text content)

Tips for Best Results

  • Semantic HTML: Use semantic HTML elements for better RDF representation
  • IDs and Classes: Include meaningful IDs and classes for resource identification
  • Metadata: Add title and meta tags for richer RDF output
  • Base URI: Use a consistent base URI for your domain
  • Format Selection: Choose Turtle for readability, N-Triples for simplicity

Privacy & Security

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