Image to Base64 Converter
Convert images to Base64 encoded strings. Drag and drop or select a file. Get data URI for CSS and HTML.
📁 Drag & drop an image here
or click to select a file
Free Image to Base64 Converter
Convert any image file to a Base64 encoded data URI. Simply drag and drop an image or click to select a file from your device. The tool generates the full data URI string that can be used directly in HTML img tags and CSS background-image properties. Everything runs in your browser — no images are uploaded to any server.
When to Use Base64 Images
Base64 encoding is useful for small images like icons, logos, and UI elements where eliminating an extra HTTP request improves page load time. For images under 10KB, Base64 embedding is generally more efficient. For larger images, separate files with proper caching are preferred since Base64 increases file size by approximately 33%.