Base64 Image Encoder

Specialized Base64 image encoder that converts image files to Base64 data URLs for embedding in HTML, CSS, or JSON. Supports all common image formats with automatic format detection and data URL generation. Perfect for embedding images in email templates, creating self-contained HTML, reducing HTTP requests, and embedding images in CSS or JSON. Features include drag-and-drop image upload, automatic Base64 encoding with data URL prefix, support for JPG, PNG, GIF, WebP, SVG, and BMP formats, copy-to-clipboard functionality, preview of encoded image, file size comparison (original vs Base64), and CSS background-image code generation. The tool shows both plain Base64 string and complete data URL, provides HTML <img> tag with data URL, warns about size increases (Base64 is ~33% larger), and includes optimization suggestions. Essential for email template developers, frontend developers reducing HTTP requests, creating offline-capable HTML, embedding icons in CSS, and working with image data in APIs. Handles large images with warning about performance impact and provides minification options.