Image to Base64 Converter
Convert images to Base64 data URIs and decode Base64 back to images.
Drop an image here, or click to choose a file.
Max size 10 MB. PNG, JPEG, WebP, SVG, GIF, or AVIF.
About Base64 images
This tool turns an image into a data URI, and a data URI back into an image. A data URI holds the image inside the text, so a CSS file or an HTML file needs no second request.
Base64 makes the data about 33 percent larger. Use it for a small icon or a placeholder only. A large image is faster as a normal file, because a browser can cache it and load it in parallel.
An email template is the common good use, because many mail clients block a linked image but show an inline one.