Download all images in a web page

downloadImages.js

// Image count
var imgTotal = 0;
var imgLoaded = 0;

// Get file name from a URL
function getFileName(o) {
    var pos = o.lastIndexOf("/");
    return o.substring(pos+1);  
}

// Create a tag and make it auto download, then insert to body
var createA = function (obj) {
    var a = document.createElement("a");
    a.id = obj.id;
    a.target = "_blank";
    a.href = obj.url;
    a.download = imgTotal + ".jpg";  // getFileName(obj.url);  // change to incremental order of images in the page
    document.body.appendChild(a);
}

// Collect all image tags in the page
var imgs = document.getElementsByTagName("img");
// Create an a tag for all images
for (var i = 0; i < imgs.length;i++){
    var obj = {
        id: "img_" + i,
        url: imgs[i].src
    }
    // filter image types
    if (["JPG", "JPEG"].indexOf(obj.url.substr(obj.url.lastIndexOf(".")+1).toUpperCase()) < 0) {
        continue;
    }
    // ignore images too small
    if (imgs[i].width <= 32 || imgs[i].height <= 32) {
       continue;
    }
    imgTotal++;
    createA(obj);
}

// Start to download
for (var i = 0; i < imgs.length; i++) {
    if (document.getElementById("img_" + i)) {
        // invoke the click event of the image object
        document.getElementById("img_" + i).click();  
        imgLoaded++;
    } 
} 
console.log("Downloaded: " + imgLoaded + ", Total: " + imgTotal);

getps.js

var urls = "";
var count = 0;
var imgs = document.getElementsByTagName("img");
for(var i = 0; i < imgs.length; i++){
    if (imgs[i].width <= 100 || imgs[i].height <= 100) {
       continue;
    }
    urls += imgs[i].src;
    if(i+1 < imgs.length) urls+="\n";
    count += 1;
}
console.log(urls);
console.log("Total " + imgs.length + ", Captured " + count);

This script allows you to download all the img tags in a page within your browser.
Simply paste it into your Developer Tools/Inspector (most browser with F12), and hit enter.
The images will automatically download into your default download folder. Some browser might require you to set some default behaviors before running this.

A mirror to the original issue.