Run this code in developer tools from Whatsapp Web. Get contacts phone number using image profile URL

get-zap-contacts-and-download-csv.js

// @gist https://gist.github.com/silasrm/2f5e87926d08ce21e25c1aed5b9ffae9
// Get contacts phone number using image profile URL
var script = document.createElement('script');script.src = "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js";document.getElementsByTagName('head')[0].appendChild(script);

var csvData = [];

var uniqueArray = function(arrArg) {
  return arrArg.filter(function(elem, pos,arr) {
    return arr.indexOf(elem) == pos;
  });
};

function get() {
    document.querySelectorAll('._1WliW img').forEach(e => {
        if (e.src.search(/^http/) !== -1) {
            var a = e.src.split('u=');
            if (a !== 'undefined' ) {
                var b = a[1].split('%40');
                if (b !== 'undefined') {
                    if (b[0].search(/\-/) !== -1) {
                        // console.log(b[0].split('-')[0]);
                        csvData.push(b[0].split('-')[0]);
                    } else {
                        // console.log(b[0]);
                        csvData.push(b[0]);
                    }
                }
            }
        }
    });

    document.querySelectorAll('._1wjpf').forEach(e => {
        let number = e.innerHTML.replace(/\D/g, '');
        if (number.length >= 8 && number.length <= 12) {
            csvData.push(number);
        }
    });
}

function createCsv(data) {
    var csvContent = '';
    data = uniqueArray(data);
    data.forEach(function(item, index) {
      csvContent += index < data.length ? item + '\n' : item;
    });

    var download = function(content, fileName, mimeType) {
      var a = document.createElement('a');
      mimeType = mimeType || 'application/octet-stream';

      if (navigator.msSaveBlob) { // IE10
        navigator.msSaveBlob(new Blob([content], {
          type: mimeType
        }), fileName);
      } else if (URL && 'download' in a) { //html5 A[download]
        a.href = URL.createObjectURL(new Blob([content], {
          type: mimeType
        }));
        a.setAttribute('download', fileName);
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
      } else {
        location.href = 'data:application/octet-stream,' + encodeURIComponent(content); // only this mime type is supported
      }
    }

    download(csvContent, 'dowload.csv', 'text/csv;encoding:utf-8');
}

function extractZapContacts(targetElement) {
    var scrollHeight = $(targetElement).get(0).scrollHeight;
    var clientHeight = $(targetElement).get(0).clientHeight;
    var steps = parseInt(scrollHeight / clientHeight);
    steps = steps + 1;

    var count = 1;

    console.log('getting ' + count + ' of ' + steps);
    for (var i = 1; i <= steps; i++) {
        get();
        $(targetElement).delay(1200).animate(
            { scrollTop: clientHeight * i },
            {
                complete: function () {
                    if (count < steps) {
                        count++;
                        console.log('getting ' + count + ' of ' + steps);
                    }
                    get();
                }
            }
        );

        if (i === steps) {
            targetElement.animate(
                { scrollTop: 0 },
                {
                    complete: function () {
                        // console.log(csvData);
                        console.log('downloading....');
                        createCsv(csvData);
                    }
                }
            );
        }
    }
};
extractZapContacts($('._1NrpZ'));

wpp-contact-extractor-rabaco.js

function convertToCSV(objArray) {
    var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;
    var str = '';

    for (var i = 0; i < array.length; i++) {
        var line = '';
        for (var index in array[i]) {
            if (line != '') line += ','

            line += array[i][index];
        }

        str += line + '\r\n';
    }

    return str;
}

function exportCSVFile(headers, items, fileTitle) {
    if (headers) {
        items.unshift(headers);
    }

    // Convert Object to JSON
    var jsonObject = JSON.stringify(items);

    var csv = this.convertToCSV(jsonObject);

    var exportedFilenmae = fileTitle + '.csv' || 'export.csv';

    var blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
    if (navigator.msSaveBlob) { // IE 10+
        navigator.msSaveBlob(blob, exportedFilenmae);
    } else {
        var link = document.createElement("a");
        if (link.download !== undefined) { // feature detection
            // Browsers that support HTML5 download attribute
            var url = URL.createObjectURL(blob);
            link.setAttribute("href", url);
            link.setAttribute("download", exportedFilenmae);
            link.style.visibility = 'hidden';
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        }
    }
}

let paneSide = document.getElementById("pane-side");
let internalName = "";
for (p in paneSide) {
  if (p.indexOf("reactInternal") >= 0) {
    internalName = p; break;
  }
}
let allChats = paneSide[internalName];
allChats = allChats.memoizedProps.children[0][0].props.chats;

let chatList = []
for(let index in allChats){
	let chat = allChats[index];
	if(chat.isUser){
		chatList.push({
			//name: chat.name || "",
			number: chat.id.user
		});
	}
}

exportCSVFile({number: "number"}, chatList, 'wpp_chat_list');

This does not work now