Encode any image into a Base64 string

What is Base64 image encoding?

Base64 encoding lets you represent binary image data as plain text. The Data URI format (data:image/png;base64,…) can be pasted directly into HTML <img src=""> or CSS background-image: url(), embedding the image without a separate file request.

It's great for tiny icons, email signatures, or single-file HTML pages. For larger images, Base64 makes the file ~33% bigger than the original — use it for icons under 5 KB, and use real image URLs for everything else.