YouTube Smaller Thumbnails

Adds additional thumbnails per row

נכון ליום 11-06-2025. ראה הגרסה האחרונה.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         YouTube Smaller Thumbnails
// @namespace    http://greatest.deepsurf.us
// @version      0.0.7
// @description  Adds additional thumbnails per row
// @author       you
// @license      MIT
// @match        *://www.youtube.com/*
// @match        *://youtube.com/*
// @run-at       document-start
// @grant        GM_registerMenuCommand
// @grant        GM_unregisterMenuCommand
// @grant        GM_addValueChangeListener
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// @require https://update.greatest.deepsurf.us/scripts/470224/1506547/Tampermonkey%20Config.js
// ==/UserScript==
(function() {
    'use strict';
    const DEFAULT_MAX_COLUMNS = 6; // Maximum amount of columns.
    const DEFAULT_MAX_SHORTS_COLUMNS = 12; // Maximum amount of columns for shorts.

    let cfg

    if (
        typeof GM_registerMenuCommand === 'undefined' ||
        typeof GM_unregisterMenuCommand === 'undefined' ||
        typeof GM_addValueChangeListener === 'undefined' ||
        typeof GM_getValue === 'undefined' ||
        typeof GM_setValue === 'undefined' ||
        typeof GM_deleteValue === 'undefined'
    ) {
        cfg = {
            params: {
                'columns': DEFAULT_MAX_COLUMNS,
                'shortsColumns': DEFAULT_MAX_SHORTS_COLUMNS,
                'shortsScale': 10,
                'applyStyles': true
            },
            get: function (key) {
                return typeof this.params[key] !== 'undefined' ? this.params[key] : null;
            }
        }
    } else {
        cfg = new GM_config({
            columns: {
                type: 'int',
                name: 'Videos Per Row',
                value: DEFAULT_MAX_COLUMNS,
                min: 1,
                max: 20
            },
            shortsColumns: {
                type: 'int',
                name: 'Shorts Per Row',
                value: DEFAULT_MAX_SHORTS_COLUMNS,
                min: 1,
                max: 20
            },
            shortsScale: {
                type: 'int',
                name: 'Shorts Scale (in %)',
                min: 10,
                max: 200,
                value: 10
            },
            applyStyles: {
                type: 'boolean',
                name: 'Apply Styles',
                value: true
            }
        })
    }

    function debug(...args) {
        console.log('%c[YouTube Smaller Thumbnails]', 'background: #111; color: green; font-weight: bold;', ...args)
    }

    function applyStyles() {
        if (!cfg.get('applyStyles')) {
            return
        }

        var style = document.createElement('style');
        style.appendChild(document.createTextNode(`
ytd-rich-item-renderer[is-slim-media] {
  width: ${cfg.get('shortsScale')}% !important;
}

ytd-rich-item-renderer[rendered-from-rich-grid][is-in-first-column] {
  margin-left: calc(var(--ytd-rich-grid-item-margin)/2) !important;
}
    	`));
        document.body.appendChild(style);
        debug('Applied styles')
    }

    document.addEventListener("DOMContentLoaded", applyStyles);
    document.addEventListener("load", applyStyles);


    function installStyle(contents) {
        var style = document.createElement('style');
        style.innerHTML = contents;
        document.body.appendChild(style);
    }

    function getTargetValue() {
        return currentOrDefault(+cfg.get('columns'), DEFAULT_MAX_COLUMNS)
    }

    function getShortsTargetValue() {
        return currentOrDefault(+cfg.get('shortsColumns'), DEFAULT_MAX_SHORTS_COLUMNS)
    }

    function currentOrDefault(value, defaultValue) {
        const num = parseInt(value, 10);
        if (!isNaN(num) && num.toString() === String(value).trim() && num > 0 && num < 100) {
            return num
        }
        return defaultValue
    }

    function isShorts(itemElement) {
        return null !== itemElement.getAttribute('is-slim-media')
    }

    function modifyGridStyle(gridElement) {
        const currentStyle = gridElement.getAttribute('style');
        if (!currentStyle) {
            return;
        }

        const itemsPerRowMatch = currentStyle.match(/--ytd-rich-grid-items-per-row:\s*(\d+)/);
        if (!itemsPerRowMatch) {
            return;
        }

        const currentValue = parseInt(itemsPerRowMatch[1], 10);

        if (isNaN(currentValue)) {
            return;
        }

        const newValue = getTargetValue();

        if (currentValue === newValue) {
            return;
        }

        const newStyle = currentStyle.replace(
            /--ytd-rich-grid-items-per-row:\s*\d+/,
            `--ytd-rich-grid-items-per-row: ${newValue}`
        );

        gridElement.setAttribute('style', newStyle);
        debug(`Modified items per row: ${currentValue} -> ${newValue}`);
    }

    function modifyItemsPerRow(itemElement) {
        const currentValue = parseInt(itemElement.getAttribute('items-per-row'), 10);

        if (isNaN(currentValue)) {
            return;
        }

        const newValue = isShorts(itemElement) ?
            getShortsTargetValue() :
            getTargetValue();

        if (currentValue === newValue) {
            return;
        }

        itemElement.setAttribute('items-per-row', newValue);
        debug(`Modified items per row: ${currentValue} -> ${newValue}`);
    }

    function modifyShortHidden(itemElement) {
        if (!isShorts(itemElement)) {
            return;
        }

        if (null === itemElement.getAttribute('hidden')) {
            return
        }

        itemElement.removeAttribute('hidden');
        debug(`Modified hidden`);
    }

    function modifyShelfRenderer(itemElement) {
        const currentStyle = itemElement.getAttribute('style');
        if (!currentStyle) {
            return;
        }

        const itemsCountMatch = currentStyle.match(/--ytd-rich-shelf-items-count:\s*(\d+)/);
        if (!itemsCountMatch) {
            return;
        }

        const currentValue = parseInt(itemElement.getAttribute('elements-per-row'), 10);
        if (isNaN(currentValue)) {
            return;
        }

        const newValue = getShortsTargetValue()
        if (currentValue === newValue) {
            return;
        }

        const newStyle = currentStyle.replace(
            /--ytd-rich-shelf-items-count:\s*\d+/,
            `--ytd-rich-shelf-items-count: ${newValue}`
        );

        itemElement.setAttribute('style', newStyle);
        itemElement.setAttribute('elements-per-row', newValue);
        debug(`Modified elements per row: ${currentValue} -> ${newValue}`);
    }

    function processExistingElements() {
        document.querySelectorAll('ytd-rich-grid-renderer').forEach(gridElement => {
            modifyGridStyle(gridElement);
        });

        document.querySelectorAll('ytd-rich-item-renderer').forEach(itemElement => {
            modifyItemsPerRow(itemElement);
            modifyShortHidden(itemElement);
        });
    }

    const observer = new MutationObserver((mutations) => {
        mutations.forEach((mutation) => {
            if (mutation.addedNodes && mutation.addedNodes.length > 0) {
                mutation.addedNodes.forEach((node) => {
                    if (node.nodeType === Node.ELEMENT_NODE) {
                        if (node.tagName === 'YTD-RICH-GRID-RENDERER') {
                            modifyGridStyle(node);
                        }
                        if (node.tagName === 'YTD-RICH-ITEM-RENDERER') {
                            modifyItemsPerRow(node);
                        }
                        if (node.tagName === 'YTD-RICH-SHELF-RENDERER') {
                            modifyShelfRenderer(node);
                        }

                        node.querySelectorAll('ytd-rich-grid-renderer').forEach(gridElement => {
                            modifyGridStyle(gridElement);
                        });
                        node.querySelectorAll('ytd-rich-item-renderer').forEach(itemElement => {
                            modifyItemsPerRow(itemElement);
                            modifyShortHidden(itemElement);
                        });
                        node.querySelectorAll('ytd-rich-shelf-renderer').forEach(itemElement => {
                            modifyShelfRenderer(itemElement);
                        });
                    }
                });
            }

            if (mutation.type === 'attributes') {
                const target = mutation.target;

                if (target.tagName === 'YTD-RICH-GRID-RENDERER' && mutation.attributeName === 'style') {
                    modifyGridStyle(target);
                }
                if (target.tagName === 'YTD-RICH-ITEM-RENDERER' && mutation.attributeName === 'items-per-row') {
                    if (mutation.attributeName === 'items-per-row') {
                        modifyItemsPerRow(target);
                    }

                    if (mutation.attributeName === 'hidden') {
                        modifyShortHidden(target);
                    }

                }
                if (target.tagName === 'YTD-RICH-SHELF-RENDERER' && mutation.attributeName === 'elements-per-row') {
                    modifyShelfRenderer(target);
                }
            }
        });
    });

    function startObserver() {
        processExistingElements();
        observer.observe(document.documentElement, {
            childList: true,
            subtree: true,
            attributes: true,
            attributeFilter: ['style', 'hidden', 'items-per-row', 'elements-per-row']
        });

        debug('Observer started');
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', startObserver);
    } else {
        startObserver();
    }

    setInterval(processExistingElements, 3000);
})();