Zillow Image Downloader

zillow.js

/**
 *  NOTE: this specifically works if the house is for sale since it renders differently.
 *  This will download the highest resolution available per image.
 */ 



/**
 * STEP 1: Make sure to *SCROLL* through all images so they appear on DOM.
 * No need to click any images.
 */



/**
 * STEP 2: Open Dev Tools Console.
 * Copy and paste code below
 */
const script = document.createElement('script');
script.src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js";

script.onload = () => {
  $ = jQuery.noConflict();
  
  const imageList = $('ul.media-stream li picture source[type="image/jpeg"]').map(function () {
    const srcset = $(this).attr('srcset').split(' '); // get highest res urls for each image
    return srcset[srcset.length - 2]
  }).toArray();
  
  const delay = ms => new Promise(res => setTimeout(res, ms)); // promise delay
  
  // get all image blobs in parallel first before downloading for proper batching
  Promise.all(imageList.map(i => fetch(i))
  ).then(responses =>
    Promise.all(responses.map(res => res.blob()))
    ).then(async (blobs) => {
      for (let i = 0; i < blobs.length; i++) {
        if (i % 10 === 0) {
          console.log('1 sec delay...');
          await delay(1000);
        }
        
        var a = document.createElement('a');
        a.style = "display: none";
        console.log(i);
        
        var url = window.URL.createObjectURL(blobs[i]);
        a.href = url;
        a.download = i + '';
        document.body.appendChild(a);
      a.click();

      setTimeout(() => {
        window.URL.revokeObjectURL(url);
      }, 100);
    }
  });
};

document.getElementsByTagName('head')[0].appendChild(script);

This also worked for me. So long as you scroll down in the Zillow image gallery to get all the images it will gather all the images in a zip folder for you. I targeted all the .webp images since that's the image type that Zillow requests/uses.

// Load JSZip library
const script = document.createElement('script');
script.src = "https://cdnjs.cloudflare.com/ajax/libs/jszip/3.7.1/jszip.min.js";
document.head.appendChild(script);

script.onload = function() {
    // Function to download the zip file
    function downloadZip(zip) {
        zip.generateAsync({type: 'blob'}).then(function(content) {
            const link = document.createElement('a');
            link.href = URL.createObjectURL(content);
            link.download = 'images.zip';
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        });
    }

    // Function to gather and zip .webp image URLs from the network requests
    function gatherAndZipImages() {
        const imageUrls = [];
        const zip = new JSZip();
        const imgFolder = zip.folder("images");

        // Get all network requests from the Performance tab
        const requests = window.performance.getEntriesByType('resource');

        requests.forEach((request, index) => {
            if (request.initiatorType === 'img' && request.name.endsWith('.webp')) {
                imageUrls.push(request.name);
            }
        });

        if (imageUrls.length > 0) {
            console.log('Image URLs:', imageUrls);
            const downloadPromises = imageUrls.map((url, index) => {
                return fetch(url).then(response => response.blob()).then(blob => {
                    imgFolder.file(`image_${index + 1}.webp`, blob);
                });
            });

            Promise.all(downloadPromises).then(() => {
                downloadZip(zip);
            });
        } else {
            console.log('No .webp images found.');
        }
    }

    // Execute the function to gather and zip images
    gatherAndZipImages();
}

I haven't been able to get the above solutions to work but I was able to use @hzarrabi's snippet as a base for this script. Theirs should be more reliable but for some reason only a small number of the actual images were ever found in the resources... I expect this to be fairly brittle given it's relying on data attributes to select DOM elements but as of now (November 2, 2024) it works a treat. I threw in some options at the top for image format and sizes Zillow makes available as well.

const TARGET_FORMAT = "jpeg";  // Options: `jpeg` or `webp`
const TARGET_SIZE = "1536";  // Options: `1536`, `1344`, `1152`, `960`, `768`, `576`, `384`, `192`

// Load JSZip library
const script = document.createElement('script');
script.src = "https://cdnjs.cloudflare.com/ajax/libs/jszip/3.7.1/jszip.min.js";
document.head.appendChild(script);

script.onload = function() {
    // Function to download the zip file
    function downloadZip(zip) {
        zip.generateAsync({type: 'blob'}).then(function(content) {
            const link = document.createElement('a');
            link.href = URL.createObjectURL(content);
            link.download = 'images.zip';
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        });
    }

    // Function to gather and zip image URLs from "media wall"
    function gatherAndZipImages() {
        // Gather the image URLs
        const mediaWall = document.querySelector('ul[data-cy="hollywood-vertical-media-wall"]');
        const sources = Array.from(mediaWall.querySelectorAll(`source[type="image/${TARGET_FORMAT}"]`));

        // Try to pull the largest src URL from a source's srcset
        // srcset is in the format "<url> <size>, <url> <size>" so we split it and try to grab the last (hopefully largest) URL
        // It shouldn't really matter, though, since the regex will replace the target size with the largest possible anyway
        const imageUrls = sources.map(source => {debugger; return source.srcset.split(",").at(-1).split(" ")[1].replaceAll(/_\d+.(jpg|webp)/g, `_${TARGET_SIZE}.${TARGET_FORMAT}`)});

        const zip = new JSZip();
        const imgFolder = zip.folder("images");

        if (imageUrls.length > 0) {
            console.log('Image URLs:', imageUrls);
            const downloadPromises = imageUrls.map((url, index) => {
                return fetch(url).then(response => response.blob()).then(blob => {
                    imgFolder.file(`image_${index + 1}.${TARGET_FORMAT}`, blob);
                });
            });

            Promise.all(downloadPromises).then(() => {
                downloadZip(zip);
            });
        } else {
            console.log(`No .${TARGET_FORMAT} images found.`);
        }
    }

    // Execute the function to gather and zip images
    gatherAndZipImages();
}