Base64 images to gmail

Question

I'm generating some inline images for an email sent from the iPad. Looks great in all desktop email clients, but gmail doesn't seem to like the base64 image and it shows up as text.

Anyone have any luck embedding images with base64 and gmail? Or know of a better solution for sending HTML emails with images from the iPad?

user_860099 · Answer

I test that gmail don support also raw data uri images (without base64) - I use this snippet to generate image (which then was send to gmail addres) - but images not show up :(

To solve this issue you need to add images as attachements with cid and use that cid in img tags - more details here

function convert() {
  let base64 = imageBase64.value.split('base64,')[1];
  let hex = [...atob(base64)].map(c => c.charCodeAt(0).toString(16).padStart(2, 0));
  let img = 'data:image/png,%' + hex.join('%');

  pic.src = img;
  msg.innerText = img;
}

Put your img base64 data uri here



 Result

user_14059011 · Answer

I use this generator https://codebeautify.org/svg-to-base64-converter

When you get onto the website, you can upload your image, for example an SVG image, after uploading your image you will get a code snippet with and in-bedded Base64 image that you can simple copy and past to your html file.

Works great.

user_1779483 · Answer

Try This Buddies.. I m sure this Would work to include an image as an attachment

                    $output_hex_string_img = $image;
                    $output_bin_string_img = base64_decode($output_hex_string_img);
                    //echo base64_encode( $output_bin_string_img );
                    $XXX = base64_encode( $output_bin_string_img );

                    $from_name = "Senders Name";
                    $from_mail = "yyyyyyyy@gmail.com";
                    $replyto = "yyyyyyyy@gmail.com";
                    $subject = "Device Missing Notification";
                $message = "Device Missing notification has been activated on your device. Please change this setting when you find your smartphone back. Best Of Luck!!

 ";



                    $mailto = 'xxxxxxxx@mail.com';



                        $file = $XXX;
                        $filename = "Print_shot.png";
                        $uid = md5(uniqid(time()));
                        $name = basename($file);
                        $header = "From: ".$from_name." <".$from_mail.">
";
                        $header .= "Reply-To: ".$replyto."
";
                        $header .= "MIME-Version: 1.0
";
                        $header .= "Content-Type: multipart/mixed; boundary="".$uid.""

";
                        $header .= "This is a multi-part message in MIME format.
";
                        $header .= "--".$uid."
";
                        $header .= "Content-type:text/html; charset=iso-8859-1
";
                        $header .= "Content-Transfer-Encoding: 7bit

";
                        $header .= $message."

";
                        $header .= "--".$uid."
";
                        $header .= "Content-Type: application/octet-stream; name="".$filename.""
"; // use different content types here
                        $header .= "Content-Transfer-Encoding: base64
";
                        $header .= "Content-Disposition: attachment; filename="".$filename.""

";
                        $header .= $file."

";
                        $header .= "--".$uid."--";
                        mail($mailto, $subject, "", $header);

But you have to include everything inside headers by using different Content-Type in headers. and whatever Appear in the Body which could be the third parameter in the mail function will be passed as a blank string..

user_7431868 · Answer

This works fine: I set two src attribute, one with data:image/png;base64 and the other with the link to the image. When you use gmail, it use the src attribute with link and when you use other client of email it use the src attribute with data:image/png;base64. Try it!. you will see.

Base64 images to gmail

8 Answers