Export YouTube playlist to CSV with Google Chrome Developer Console. Open the playlist page, run this script to export playlist to CSV with title, url, and video length.

ExportYouTubePlaylistToCsv.js

var ytp = document.querySelectorAll("ytd-playlist-video-list-renderer > #contents > ytd-playlist-video-renderer");
var time = 0;

function convertS(sec) {
    var hrs = Math.floor(sec / 3600);
    var min = Math.floor((sec - (hrs * 3600)) / 60);
    var seconds = sec - (hrs * 3600) - (min * 60);
    seconds = Math.round(seconds * 100) / 100

    var result = (hrs < 10 ? "0" + hrs : hrs) + ':';
    result += (min < 10 ? "0" + min : min) + ":";
    result += (seconds < 10 ? "0" + seconds : seconds);
    return result;
}
var videos = [];
for (var i = 0; i < ytp.length; i++) {
    var a = ytp[i].getElementsByTagName('ytd-thumbnail-overlay-time-status-renderer')[0].innerText;
    var tx = a.split(':');
    var title = ytp[i].getElementsByTagName("a")[1].title;
    var url = ytp[i].getElementsByTagName("a")[1].href;
    if(url.includes("&t="))
        url = url.split("&t=")[0];
    if (tx.length < 3) {
        videoLength = Number(tx[0]) * 60 + Number(tx[1]);
        time = time + Number(tx[0]) * 60 + Number(tx[1]);
    } else if (tx.length = 3) {
        time = time + Number(tx[0]) * 60 * 60 + Number(tx[1]) * 60 + Number(tx[2]);
        videoLength = Number(tx[0]) * 60 * 60 + Number(tx[1]) * 60 + Number(tx[2]);
    }

    videos.push({ title, videoLength: convertS(videoLength), seconds: videoLength, url });
}

function download_csv_file() {

    //define the heading for each row of the data  
    var csv = 'Title,Url,Length,Seconds\n';

    //merge the data with CSV  
    videos.forEach(function (row) {
        csv += "\""+row.title + "\"," + row.url + "," + row.videoLength + "," + row.seconds;
        csv += "\n";
    });

    //display the created CSV data on the web browser   
    document.write(csv);


    var hiddenElement = document.createElement('a');
    hiddenElement.href = 'data:text/csv;charset=utf-8,' + encodeURI(csv);
    hiddenElement.target = '_blank';

    //provide the name for the CSV file to be downloaded  
    hiddenElement.download = 'YoutubePlayList.csv';
    hiddenElement.click();
}

var ytpT = convertS(time)
var show = 'YouTube Playlist \n --------------- \n Total Videos : ' + ytp.length + '\n Total Duration : ' + ytpT + '\n Avg. Duration  : ' + convertS(time / ytp.length);
// alert(show);
// console.log(videos);
download_csv_file();

Hello,
from your original script is it possible to upgrade it to export all details playlists from a youtube channel in one file ? by adding a column for the playliist name and export all details for each playlis from one channel.
It could be great! thanks for your help.

Hello. This is excellent! Is it possible to also to add the Channel Name in the export? Thank you!