^^Data URL.  MIME type.   base 64 code.

data:[<mediatype>][;base64],<data>   sintassi Data URL

mediatype   is a MIME type string

base64        token to say that the data are non-textual, but base64 coded.

                   ref: wp/Base64.

                   ref: rapidtables/image-to-base64  encoder online

MIME type    Multipurpose Internet Mail Extensions
a standard that indicates the nature and format of a document, file, or assortment of bytes.

Es di MIME type

type/subtype   is the syntax



image/jpeg    for a JPEG image file

type/subtype;parameter=value is the syntax with parameter


Encoding bytes to printable char

  1. wp/Base64.
  2. johndcook/base 85 encoding | base 32 and  base 64 encoding
  3. rapidtables/image-to-base64  encoder online


  1. wp/MIME
  2. developer.mozilla/HTTP/Data_URIs
  3. developer.mozilla/HTTP/MIME_types