Hide YouTube homepage videos by blacklisted words in title or channel name
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// ==UserScript==
// @name YouTube Keyword Blocker
// @description Hide YouTube homepage videos by blacklisted words in title or channel name
// @match https://www.youtube.com/*
// @run-at document-end
// @version 0.0.1.20250507085225
// @namespace https://greasyfork.org/users/1435046
// ==/UserScript==
(function() {
'use strict';
// Hard-coded blacklist (case-insensitive substrings or regexes)
const blacklist = [
'trump',
// add more words or patterns here
];
// CSS selectors for video items on the homepage
const ITEM_SELECTOR = 'ytd-rich-grid-media, ytd-video-renderer';
const TITLE_SELECTOR = '#video-title';
const CHANNEL_SELECTOR = 'ytd-channel-name a';
// Check an element and hide if matches blacklist
function filterItem(item) {
try {
const titleEl = item.querySelector(TITLE_SELECTOR);
const channelEl = item.querySelector(CHANNEL_SELECTOR);
const title = titleEl ? titleEl.textContent.trim().toLowerCase() : '';
const channel = channelEl ? channelEl.textContent.trim().toLowerCase() : '';
for (const term of blacklist) {
const pattern = term.toLowerCase();
if ((title && title.includes(pattern)) || (channel && channel.includes(pattern))) {
item.style.display = 'none';
return;
}
}
} catch (e) {
console.error('Keyword Blocker error', e);
}
}
// Initial scan
function scanPage() {
document.querySelectorAll(ITEM_SELECTOR).forEach(filterItem);
}
// Observe for dynamically loaded content
const observer = new MutationObserver(mutations => {
for (const m of mutations) {
for (const node of m.addedNodes) {
if (!(node instanceof HTMLElement)) continue;
if (node.matches(ITEM_SELECTOR)) {
filterItem(node);
} else {
node.querySelectorAll && node.querySelectorAll(ITEM_SELECTOR).forEach(filterItem);
}
}
}
});
observer.observe(document.body, { childList: true, subtree: true });
// Run initial scan after short delay to catch initial feed
window.addEventListener('yt-navigate-finish', scanPage);
setTimeout(scanPage, 2000);
})();