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“convert an image into Base64 string using JavaScript” Code Answer

convert an image into Base64 string using JavaScript

javascript by Kamran Taghaddos

on May 27 2020 Donate

function getBase64Image(src, callback, outputFormat) {
      const img = new Image();
      img.crossOrigin = 'Anonymous';
      img.onload = () => {
        const canvas = document.createElement('canvas');
        const ctx = canvas.getContext('2d');
        let dataURL;
        canvas.height = img.naturalHeight;
        canvas.width = img.naturalWidth;
        ctx.drawImage(img, 0, 0);
        dataURL = canvas.toDataURL(outputFormat);
        callback(dataURL);
      };

      img.src = src;
      if (img.complete || img.complete === undefined) {
        img.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
        img.src = src;
      }
    }