Definition of a Data URL

A Data URL is a URL scheme that allows you to embed small files inline in documents as base64-encoded strings. It begins with 'data:' and includes the content type, optional encoding parameters, and the actual data.

Basic Structure

data:[<mime-type>][;base64],<data>

Key Components

• Protocol: Starts with "data:"
• MIME Type: Specifies the type of content (e.g., text/plain, image/jpeg)
• Encoding: Usually base64 for binary data
• Data: The actual content, encoded if necessary

Common Use Cases

• Embedding small images directly in HTML/CSS
• Including simple text content without external files
• Embedding small fonts or icons
• Creating downloadable content dynamically

Advantages and Limitations

Advantages:

• Reduces HTTP requests
• Works offline
• No separate file handling required

Limitations: