YouTube Premium Features (All-in-One)

Add YouTube Premium-like features: ad-blocking, background play, HD/4K default quality, downloader, dark mode, and Premium logo.

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 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 Premium Features (All-in-One)
// @namespace    http://tampermonkey.net/
// @version      2.0
// @description  Add YouTube Premium-like features: ad-blocking, background play, HD/4K default quality, downloader, dark mode, and Premium logo.
// @author       YourName
// @license      MIT
// @match        *://www.youtube.com/*
// @grant        GM_addStyle
// ==/UserScript==

(function() {
    'use strict';

    // Function: Replace YouTube logo with "Premium" logo
    const replaceLogo = () => {
        const premiumLogo = `
            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" fill="#FF0000" height="30" width="100">
                <rect x="0" y="0" width="100" height="100" fill="white" rx="15" />
                <text x="10" y="60" font-size="50" fill="red" font-weight="bold">Premium</text>
            </svg>
        `;
        const logoContainer = document.querySelector('#logo-icon-container');
        if (logoContainer) {
            logoContainer.innerHTML = premiumLogo;
        }
    };

    // Function: Block ads on YouTube
    const blockAds = () => {
        const adSelectors = [
            '.video-ads', // Video ads container
            '.ytp-ad-module', // Overlay ads
            '.ytp-ad-player-overlay-instream-info', // In-stream ad info
            '#masthead-ad', // Banner ads
        ];
        adSelectors.forEach(selector => {
            const ads = document.querySelectorAll(selector);
            ads.forEach(ad => ad.remove());
        });
    };

    // Function: Enable background playback
    const enableBackgroundPlay = () => {
        const video = document.querySelector('video');
        if (video) {
            video.loop = false; // Prevent looping
            video.play();
        }
    };

    // Function: Set video quality to HD/4K
    const setHDQuality = () => {
        const qualityMenu = document.querySelector('button.ytp-settings-button');
        if (qualityMenu) {
            qualityMenu.click();
            setTimeout(() => {
                const qualityOptions = document.querySelectorAll('.ytp-quality-menu .ytp-menuitem');
                for (const option of qualityOptions) {
                    if (option.innerText.includes('1080p') || option.innerText.includes('2160p')) {
                        option.click();
                        break;
                    }
                }
            }, 500);
        }
    };

    // Function: Add a "Download" button
    const addDownloadButton = () => {
        const videoActions = document.querySelector('.ytd-video-primary-info-renderer #top-level-buttons-computed');
        if (videoActions && !document.querySelector('.custom-download-button')) {
            const downloadButton = document.createElement('button');
            downloadButton.className = 'custom-download-button';
            downloadButton.textContent = 'Download';
            downloadButton.style.margin = '0 5px';
            downloadButton.style.padding = '10px';
            downloadButton.style.background = '#FF0000';
            downloadButton.style.color = 'white';
            downloadButton.style.border = 'none';
            downloadButton.style.borderRadius = '4px';
            downloadButton.style.cursor = 'pointer';

            downloadButton.addEventListener('click', () => {
                const videoUrl = window.location.href;
                const downloadUrl = `https://example.com/download?url=${encodeURIComponent(videoUrl)}`;
                window.open(downloadUrl, '_blank');
            });

            videoActions.appendChild(downloadButton);
        }
    };

    // Function: Toggle dark mode
    const addDarkModeToggle = () => {
        const header = document.querySelector('#masthead-container');
        if (header && !document.querySelector('.dark-mode-toggle')) {
            const toggle = document.createElement('button');
            toggle.className = 'dark-mode-toggle';
            toggle.textContent = 'Dark Mode';
            toggle.style.margin = '0 10px';
            toggle.style.padding = '5px 15px';
            toggle.style.background = '#000000';
            toggle.style.color = '#FFFFFF';
            toggle.style.border = 'none';
            toggle.style.borderRadius = '4px';
            toggle.style.cursor = 'pointer';

            toggle.addEventListener('click', () => {
                document.body.classList.toggle('dark-mode');
            });

            header.appendChild(toggle);
        }
    };

    // Add styles for dark mode
    GM_addStyle(`
        body.dark-mode {
            background-color: #181818;
            color: #FFFFFF;
        }
        .custom-download-button:hover {
            background: #FF4500;
        }
        .dark-mode-toggle:hover {
            background: #333333;
        }
    `);

    // Run features periodically
    setInterval(() => {
        replaceLogo();
        blockAds();
        enableBackgroundPlay();
        setHDQuality();
        addDownloadButton();
        addDarkModeToggle();
    }, 2000);
})();