Image to Base64 Converter

Base64 is an encoding scheme that converts binary image data (bytes) into an ASCII string. A Data URL prefixes this string with the MIME type (`data:image/png;base64,`), allowing browsers to display the image without a separate HTTP request.

Base64 encoding uses 4 ASCII characters to represent every 3 bytes of binary data, resulting in approximately 33% size increase. This is a trade-off for the convenience of embedding images inline in text-based formats.

Your images are never uploaded to any server. The conversion is performed entirely in your browser using the FileReader API. This tool processes all data locally on your device.

Use Base64 for small icons, logos, or decorative images in email templates, single-page offline apps, or CSS files where you want zero external HTTP requests. For large images or frequently reused images, a regular URL with proper caching is more efficient.