Convert any Image to Base64 string data

First we have to Load the image as blob via XMLHttpRequest or fetch() and use the FileReader API ( readAsDataURL() ) to convert it to a dataURL:

This snippet can convert your String, Image and even Video file to Base64 string data.

const getBase64FromUrl = async (url) => {
  const data = await fetch(url);
  const blob = await data.blob();
  return new Promise((resolve) => {
    const reader = new FileReader();
    reader.readAsDataURL(blob); 
    reader.onloadend = function() {
      const base64data = reader.result;   
      resolve(base64data);
    }
  });
}

Now Call it using any Image Url

const data = getBase64FromUrl('https://picsum.photos/seed/picsum/200/300');
data.then((res)=>{
    console.log(res);
})

You will get the output like

'data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAA.....