Adds current ratings and other detailed data to all courses in your Udemy library.
// ==UserScript==
// @name Udemy - Improved Course Library
// @name:de Udemy - Verbesserte Kursbibliothek
// @name:fr Udemy - Bibliothèque de cours améliorée
// @name:es Udemy - Biblioteca de cursos mejorada
// @name:it Udemy - Libreria dei corsi migliorata
// @name:ja Udemy - コースライブラリの改良
// @description Adds current ratings and other detailed data to all courses in your Udemy library.
// @description:de Fügt aktuelle Bewertungen und andere detaillierte Informationen zu allen Kursen in deiner Udemy-Bibliothek hinzu.
// @description:fr Ajoute les évaluations actuelles et d'autres données détaillées à tous les cours de ta bibliothèque Udemy.
// @description:es Añade valoraciones actuales y otros datos detallados a todos los cursos de tu biblioteca Udemy.
// @description:it Aggiunge valutazioni attuali e altri dati dettagliati a tutti i corsi nella tua libreria Udemy.
// @description:ja Udemyのライブラリにある全てのコースに現在の評価やその他の詳細情報を追加します。
// @namespace https://github.com/tadwohlrapp
// @author Tad Wohlrapp
// @version 1.1.2
// @license MIT
// @homepageURL https://github.com/tadwohlrapp/udemy-improved-course-library
// @supportURL https://github.com/tadwohlrapp/udemy-improved-course-library/issues
// @icon https://github.com/tadwohlrapp/udemy-improved-course-library/raw/main/src/icon48.png
// @icon64 https://github.com/tadwohlrapp/udemy-improved-course-library/raw/main/src/icon64.png
// @run-at document-end
// @match https://www.udemy.com/home/my-courses/*
// @compatible firefox Tested on Firefox v117.0 with Violentmonkey v2.15.0 and Tampermonkey v4.19.0
// @compatible chrome Tested on Chrome v115.0 with Violentmonkey v2.15.0 and Tampermonkey v4.19.0
// ==/UserScript==
fetchCourses();
const mutationObserver = new MutationObserver(fetchCourses);
const observerConfig = {
childList: true,
subtree: true
};
mutationObserver.observe(document, observerConfig);
const i18n = loadTranslations();
const lang = getLang(document.documentElement.lang);
function fetchCourses() {
listenForArchiveToggle();
const courseContainers = document.querySelectorAll('[class^="enrolled-course-card--container--"]:not(.details-done)');
if (courseContainers.length == 0) return;
[...courseContainers].forEach((courseContainer) => {
const isPartialRefresh = courseContainer.classList.contains('partial-refresh');
const courseId = courseContainer.querySelector('h3[data-purpose="course-title-url"]>a').href.replace('https://www.udemy.com/course-dashboard-redirect/?course_id=', '');
const courseCustomDiv = document.createElement('div');
courseCustomDiv.classList.add('improved-course-card--additional-details', 'js-removepartial');
const innerContainer = courseContainer.querySelector('div[data-purpose="container"]')
innerContainer.appendChild(courseCustomDiv);
courseContainer.classList.add('details-done');
courseContainer.classList.add('improved-course-card--container');
courseContainer.classList.remove('partial-refresh');
// Add Link to course overview to options dropdown
const courseLinkLi = document.createElement('li');
courseLinkLi.innerHTML = `
<a class="udlite-btn udlite-btn-large udlite-btn-ghost udlite-text-sm udlite-block-list-item udlite-block-list-item-small udlite-block-list-item-neutral" role="menuitem" tabindex="-1" href="https://www.udemy.com/course/${courseId}/" target="_blank" rel="noopener">
<span class="udi-small udi udi-explore udlite-block-list-item-icon"></span>
<div class="udlite-block-list-item-content card__course-link">${i18n[lang].overview}
<svg fill="#686f7a" width="12" height="16" viewBox="0 0 24 24" style="vertical-align: bottom; margin-left: 5px;" xmlns="http://www.w3.org/2000/svg">
<path d="M19 19H5V5h7V3H5a2 2 0 00-2 2v14c0 1.1.9 2 2 2h14a2 2 0 002-2v-7h-2v7zM14 3v2h3.6l-9.8 9.8 1.4 1.4L19 6.4V10h2V3h-7z"></path>
</svg>
</div>
</a>
`;
courseLinkLi.classList.add('js-removepartial');
const allDropdowns = courseContainer.parentElement.querySelectorAll('.udlite-block-list');
if (allDropdowns[1]) {
allDropdowns[1].appendChild(courseLinkLi);
}
// Find existing elements in DOM
const imageWrapper = courseContainer.querySelector('div[class^="course-card-module--image-container--"]');
imageWrapper.classList.add('improved-course-card--image-container');
const mainContent = courseContainer.querySelector('div[class^="course-card-module--main-content--"]');
mainContent.classList.add('improved-course-card--main-content');
const courseTitle = courseContainer.querySelector('h3[data-purpose="course-title-url"]');
courseTitle.classList.add('improved-course-card--course-title');
const priceTextContainer = courseContainer.querySelector('div[class^="course-card-module--price-text-container--"]');
if (priceTextContainer) priceTextContainer.parentNode.removeChild(priceTextContainer);
const courseBadges = courseContainer.querySelector('div[class^="course-card-module--badges-container--"]');
if (courseBadges) courseBadges.parentNode.removeChild(courseBadges);
const progressBar = courseContainer.querySelector('div[class^="enrolled-course-card--meter--"]');
progressBar?.classList.add('improved-course-card--meter');
const progressAndRating = courseContainer.querySelector('div[class*="enrolled-course-card--progress-and-rating--"]');
progressAndRating?.classList.add('improved-course-card--progress-and-rating');
const progressText = progressAndRating.firstChild;
const progressMade = /%/.test(progressText.textContent);
if (!progressMade) progressAndRating.parentNode.removeChild(progressAndRating);
// If progress made
if (progressMade) {
// Add progress bar below thumbnail
const progressBarSpan = document.createElement('span');
progressBarSpan.classList.add('impr__progress-bar', 'js-removepartial');
progressBarSpan.innerHTML = progressBar.innerHTML;
imageWrapper.appendChild(progressBarSpan);
// Add progress percentage to thumbnail bottom right
const progressTextSpan = document.createElement('span');
progressTextSpan.classList.add('card__thumb-overlay', 'card__course-runtime', 'hover-show', 'js-removepartial');
progressTextSpan.textContent = progressText.textContent;
imageWrapper.appendChild(progressTextSpan);
// Remove existing progress percentage
progressText.parentNode.removeChild(progressText);
}
// Remove existing progress bar
if (!isPartialRefresh) {
progressBar.parentNode.removeChild(progressBar);
}
// If course page has draft status, do not even to fetch its data via API
if (courseContainer.querySelector('[data-purpose="course-title-url"] a').href.includes('/draft/')) {
courseContainer.querySelector('.card__course-link').style.textDecoration = "line-through";
courseCustomDiv.classList.add('card__nodata');
courseCustomDiv.innerHTML += i18n[lang].notavailable;
// We're done with this course
return;
}
const fetchUrl = 'https://www.udemy.com/api-2.0/courses/' + courseId + '?fields[course]=rating,num_reviews,num_subscribers,content_length_video,last_update_date,created,locale,has_closed_caption,caption_languages,num_published_lectures';
fetch(fetchUrl)
.then(response => {
if (response.ok) {
return response.json();
} else {
throw new Error(response.status);
}
})
.then(json => {
if (typeof json === 'undefined') { return; }
// Get everything from JSON and put it in variables
const rating = json.rating.toFixed(1);
const reviews = json.num_reviews;
const enrolled = json.num_subscribers;
const runtime = json.content_length_video;
const date = json.last_update_date ?? json.created.slice(0, 10); // 'created' comes as full iso string with time
const locale = json.locale.title;
const localeCode = json.locale.locale;
const hasCaptions = json.has_closed_caption;
const captionsLangs = json.caption_languages;
// Format "Last updated / Created" Dates
const updateDateShort = date ? date.replace(/(\d{4})-(\d{2})-(\d{2})/, '$2\/$1') : '';
const updateDateLong = date ? new Date(date).toLocaleDateString(lang, { year: 'numeric', month: 'long', day: 'numeric' }) : '';
// Small helper for rating strip color
const getColor = v => `hsl(${(Math.round((1 - v) * 120))},100%,45%)`;
const colorValue = r => Math.min(Math.max((5 - r) / 2, 0), 1);
// If captions are available, create the tag for it. We'll add it in template string later
let captionsTag = '';
if (hasCaptions) {
const captionsString = captionsLangs.join('
');
captionsTag = `
<div class="impr__badge" data-tooltip="${captionsString}">
<svg aria-hidden="true" focusable="false" class="ud-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
<path d="M21 4H3v16h18V4zm-10 7H9.5v-.5h-2v3h2V13H11v2H6V9h5v2zm7 0h-1.5v-.5h-2v3h2V13H18v2h-5V9h5v2z"/>
</svg>
</div>
`;
}
// Returns true or false depending if stars are visible
const reviewButton = courseContainer.querySelector('[data-purpose="review-button"]');
// Now let's handle own ratings
// Set up empty html
let myRatingHtml = '';
let ratingButton;
let ratingOwn = 0;
// If ratings stars ARE visible, proceed to build own rating stars
if (reviewButton != null) {
// Find the rating-button, and remove its css class
ratingButton = reviewButton;
// If I have voted, count the stars and tell me how I voted
ratingOwn = getRatingFromSvg(ratingButton.querySelector('svg')); // between 0 and 5
// Remove the old stars from ratingButton
ratingButton.removeChild(ratingButton.querySelector('span'));
// Build the html
myRatingHtml = `
<div class="impr__rating-row">
<span class="impr__star-wrapper">
<span class="ud-sr-only">Rating: ${ratingOwn} out of 5</span>
${buildSvgStars(courseId.toString() + '-own', ratingOwn)}
<span class="ud-heading-sm impr__rating-number">${setDecimal(ratingOwn, lang)}</span>
</span>
<span class="ud-text-xs impr__rating-count">(<span class="review-button"></span>)</span>
</div>
`;
}
const ratingStripColor = ratingOwn > 0 ? ratingOwn : rating;
let updateDateInfo = '';
if (updateDateShort !== '' && updateDateLong !== '') {
updateDateInfo = `
<div class="impr__badge" data-tooltip="${i18n[lang].updated}${updateDateLong}">
<svg aria-hidden="true" focusable="false" class="ud-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
<path d="M11 8v5l4.3 2.5.7-1.3-3.5-2V8H11zm10 2V3l-2.6 2.6A9 9 0 1 0 21 12h-2a7 7 0 1 1-2-5l-3 3h7z"/>
</svg><span>${updateDateShort}</span>
</div>
`;
}
courseCustomDiv.innerHTML = `
<div class="impr__rating">
<div class="impr__rating-row">
<span class="impr__star-wrapper">
<span class="ud-sr-only">Rating: ${rating} out of 5</span>
${buildSvgStars(courseId, rating)}
<span class="ud-heading-sm impr__rating-number">${setDecimal(rating, lang)}</span>
</span>
<span class="ud-text-xs impr__rating-count">(${setSeparator(reviews, lang)})</span>
</div>
${myRatingHtml}
</div>
<div class="impr__rating-strip" style="background-color:${getColor(colorValue(ratingStripColor))}"></div>
<div class="impr__stats">
<div class="impr__badge" data-tooltip="${setSeparator(enrolled, lang)} ${i18n[lang].enrolled}">
<svg aria-hidden="true" focusable="false" class="ud-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
<path d="M16 11c1.7 0 3-1.3 3-3s-1.3-3-3-3-3 1.3-3 3 1.3 3 3 3zm-8 0c1.7 0 3-1.3 3-3S9.7 5 8 5 5 6.3 5 8s1.3 3 3 3zm0 2c-2.3 0-7 1.2-7 3.5V19h14v-2.5c0-2.3-4.7-3.5-7-3.5zm8 0h-1c1.2.9 2 2 2 3.5V19h6v-2.5c0-2.3-4.7-3.5-7-3.5z"/>
</svg><span>${setSeparator(enrolled, lang)}</span>
</div>
${updateDateInfo}
${captionsTag}
</div>
`;
if (reviewButton != null) {
const reviewButtonContainer = courseCustomDiv.querySelector('.review-button');
ratingButton.style.display = 'inline';
reviewButtonContainer.appendChild(ratingButton);
}
// Hide language badge if language is English
if (localeCode.slice(0, 2) !== 'en') {
const localeSpan = document.createElement('span');
localeSpan.classList.add('card__thumb-overlay', 'card__course-locale', 'hover-hide', 'js-removepartial');
localeSpan.innerHTML = `<span style="margin-right: 3px;vertical-align: bottom;font-size: 14px;line-height: 13px;">${getFlagEmoji(localeCode.slice(-2))}</span>${locale}`;
imageWrapper.appendChild(localeSpan);
}
// Add course runtime from API to thumbnail bottom right
const runtimeSpan = document.createElement('span');
runtimeSpan.classList.add('card__thumb-overlay', 'card__course-runtime', 'hover-hide', 'js-removepartial');
runtimeSpan.innerHTML = parseRuntime(runtime, lang);
imageWrapper.appendChild(runtimeSpan);
})
.catch(error => {
courseCustomDiv.classList.add('card__nodata');
courseCustomDiv.innerHTML += `<div><b>${error}</b><br>${i18n[lang].notavailable}</div>`;
});
});
}
function listenForArchiveToggle() {
document.querySelectorAll('[data-purpose="toggle-archived"]').forEach(item => {
item.addEventListener('click', event => {
// super super dirty quickfix for broken archiving. I am sorry
setTimeout(() => {
location.reload();
}, 500)
});
});
}
function setSeparator(int, lang) {
return int.toString().replace(/\B(?=(\d{3})+(?!\d))/g, i18n[lang].separator);
}
function setDecimal(rating, lang) {
return rating.toString().replace('.', i18n[lang].decimal);
}
function getLang(lang) {
return i18n.hasOwnProperty(lang) ? lang : 'en-us';
}
function buildSvgStars(courseId, rating) {
return (`
<svg aria-hidden="true" viewBox="0 0 70 14" fill="none" xmlns="http://www.w3.org/2000/svg" class="impr__svg-stars">
<mask id="mask-${courseId}" data-purpose="star-rating-mask">
<rect x="0" y="0" width="${rating * 20}%" height="100%" fill="white"></rect>
</mask>
<g fill="#e59819" mask="url(#mask-${courseId})" data-purpose="star-filled">
<use xlink:href="#icon-rating-star" width="14" height="14" x="0"></use>
<use xlink:href="#icon-rating-star" width="14" height="14" x="14"></use>
<use xlink:href="#icon-rating-star" width="14" height="14" x="28"></use>
<use xlink:href="#icon-rating-star" width="14" height="14" x="42"></use>
<use xlink:href="#icon-rating-star" width="14" height="14" x="56"></use>
</g>
<g fill="transparent" stroke="#e59819" stroke-width="2" data-purpose="star-bordered">
<use xlink:href="#icon-rating-star" width="12" height="12" x="1" y="1"></use>
<use xlink:href="#icon-rating-star" width="12" height="12" x="15" y="1"></use>
<use xlink:href="#icon-rating-star" width="12" height="12" x="29" y="1"></use>
<use xlink:href="#icon-rating-star" width="12" height="12" x="43" y="1"></use>
<use xlink:href="#icon-rating-star" width="12" height="12" x="57" y="1"></use>
</g>
</svg>
`);
}
function parseRuntime(seconds, lang) {
if (seconds % 60 > 29) { seconds += 30; }
let hours = Math.floor(seconds / 60 / 60);
let minutes = Math.floor(seconds / 60) - (hours * 60);
let hoursFormatted = hours > 0 ? hours.toString() + i18n[lang].hours : '';
let minutesFormatted = minutes > 0 ? ' ' + minutes.toString() + i18n[lang].mins : '';
return hoursFormatted + minutesFormatted;
}
function getRatingFromSvg(svgElement) {
let percentage = svgElement.querySelector('mask rect').getAttribute('width');
let rating = parseFloat(percentage) / 100 * 5;
return rating;
}
function loadTranslations() {
return {
'en-us': {
'overview': 'Course overview',
'enrolled': 'students',
'updated': 'Last updated ',
'notavailable': 'Course info not available',
'separator': ',',
'decimal': '.',
'hours': 'h',
'mins': 'm'
},
'de-de': {
'overview': 'Kursübersicht',
'enrolled': 'Teilnehmer',
'updated': 'Zuletzt aktualisiert ',
'notavailable': 'Kursinfo nicht verfügbar',
'separator': '.',
'decimal': ',',
'hours': ' Std',
'mins': ' Min'
},
'es-es': {
'overview': 'Descripción del curso',
'enrolled': 'estudiantes',
'updated': 'Última actualización ',
'notavailable': 'La información del curso no está disponible',
'separator': '.',
'decimal': ',',
'hours': ' h',
'mins': ' m'
},
'fr-fr': {
'overview': 'Aperçu du cours',
'enrolled': 'participants',
'updated': 'Dernière mise à jour : ',
'notavailable': 'Informations sur les cours non disponibles',
'separator': ' ',
'decimal': ',',
'hours': ' h',
'mins': ' min'
},
'it-it': {
'overview': 'Panoramica del corso',
'enrolled': 'studenti',
'updated': 'Ultimo aggiornamento ',
'notavailable': 'Informazioni sul corso non disponibili',
'separator': '.',
'decimal': ',',
'hours': ' h',
'mins': ' min'
},
'ja-jp': {
'overview': 'コースの概要',
'enrolled': '受講生',
'updated': '最終更新日 ',
'notavailable': 'コースの情報はありません。',
'separator': ',',
'decimal': '.',
'hours': '時間',
'mins': '分'
}
};
}
function getFlagEmoji(countryCode) {
const codePoints = countryCode
.split('')
.map(char => 127397 + char.charCodeAt());
return String.fromCodePoint(...codePoints);
}
const style = document.createElement('style');
style.textContent = `
.improved-course-card--container {
border: 1px solid #d1d7dc;
}
.improved-course-card--container:hover {
background-color: #f7f9fa;
}
.improved-course-card--container .improved-course-card--image-container {
border-width: 0 0 1px 0;
}
.improved-course-card--main-content {
padding: 0 6px;
min-height: 68px;
}
.card--learning__details {
border-top: 1px solid #e8e9eb;
}
.card__details {
padding: 12px;
height: 66px;
white-space: initial;
}
.improved-course-card--course-title {
font-size: 1.4rem !important;
}
span[class^='leave-rating--helper-text'] {
font-size: 10px;
white-space: nowrap;
}
.card__thumb-overlay {
position: absolute;
display: inline-block;
font-size: 10px;
font-weight: 700;
margin: 4px;
padding: 2px 4px;
border-radius: 2px;
transition: opacity linear 100ms;
}
.card__course-link {
font-size: 1.4rem;
}
.card__course-runtime {
bottom: 0;
right: 0;
background-color: rgba(20, 30, 46, 0.75);
color: #ffffff;
}
.impr__progress-bar ~ .card__course-runtime {
bottom: 4px;
}
.card__course-locale {
top: 0;
left: 0;
background-color: rgba(255, 255, 255, 0.9);
box-shadow: 0 0 1px 1px rgba(20, 23, 28, 0.1);
color: #29303b;
font-weight: 600;
}
.improved-course-card--container .hover-hide {
opacity: 1;
}
.improved-course-card--container .hover-show {
opacity: 0;
}
.improved-course-card--container:hover .hover-hide {
opacity: 0;
}
.improved-course-card--container:hover .hover-show {
opacity: 1;
}
.impr__progress-bar {
display: block;
position: absolute;
bottom: 0;
right: 0;
left: 0;
height: 5px;
background: rgba(20, 30, 46, 0.75);
}
.impr__progress-bar .progress__bar {
background: #a435ef !important;
}
.improved-course-card--additional-details {
width: 100%;
font-size: 1.2rem;
color: #464b53;
height: 82px;
}
.impr__rating .impr__rating-number {
margin-left: 0.4rem;
font-size: 1.3rem;
color: #505763;
}
.impr__rating-count {
color: #6a6f73;
margin-left: 0.4rem;
}
.impr__rating {
display: flex;
flex-direction: column;
justify-content: space-between;
padding: 0 6px 6px;
height: 42px;
}
.impr__rating-strip {
height: 5px;
}
.impr__stats {
font-weight: 500;
padding: 6px;
line-height: 1.7;
display: flex;
}
.impr__badge {
display: inline-flex;
position: relative;
flex-direction: row;
justify-content: center;
align-items: center;
gap: 4px;
background: #f7f8fa;
padding: 0 5px;
margin-right: 5px;
border-radius: 2px;
border: 1px solid #e7e7e8;
cursor: default;
}
.impr__badge .ud-icon {
width: 1.4rem;
height: 1.4rem;
opacity: 0.75;
}
.impr__svg-stars {
display: block;
width: 7rem;
height: 1.6rem;
}
.card__nodata {
font-size: 13px;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
height: 75px;
margin-top: 10px;
padding: 12px;
background: #fbf4f4;
color: #521822;
}
.impr__badge:hover:after {
display: flex;
justify-content: center;
background: #4f5662;
border-radius: 3px;
color: #fff;
content: attr(data-tooltip);
bottom: 24px;
margin: 0;
font-size: 11px;
padding: 2px 6px;
position: absolute;
z-index: 10;
white-space: pre;
}
.impr__badge:hover:before {
border: solid;
border-color: #4f5662 transparent;
content: '';
left: 50%;
margin-left: -4px;
position: absolute;
top: -4px;
border-width: 6px 4px 0;
}
.impr__rating-row {
margin: 0;
padding: 0;
display: flex;
}
.impr__star-wrapper {
display: inline-flex;
align-items: center;
}`;
document.documentElement.appendChild(style);