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NextSheild - Adblocker For Youtube [ FREE 2025 Update! ]

NextShield blocks all YouTube ads, letting you watch videos uninterrupted, faster, and privately for a smooth, ad-free viewing experience , boost your FPS while streaming videos.

// ==UserScript==
// @name:zh-CN      NextShield - YouTube 广告拦截器
// @name:es      NextShield - Bloqueador de Anuncios de YouTube
// @name:hi      NextShield - YouTube विज्ञापन ब्लॉकर
// @name               NextSheild - Adblocker For Youtube [ FREE 2025 Update! ]
// @name:vi      NextSheild - Công cụ bỏ qua quảng cáo
// @namespace          https://twisk.com
// @version            1.0.3
// @description:zh-CN   NextShield屏蔽所有YouTube广告，让您无需干扰、快速且私密地观看视频。
// @description:es   NextShield bloquea todos los anuncios de YouTube, permitiéndote ver videos sin interrupciones y de forma privada.
// @description:hi   NextShield सभी YouTube विज्ञापनों को ब्लॉक करता है, जिससे आप बिना रुकावट, तेज़ और निजी तरीके से वीडियो देख सकते हैं।
// @description        NextShield blocks all YouTube ads, letting you watch videos uninterrupted, faster, and privately for a smooth, ad-free viewing experience , boost your FPS while streaming videos.
// @description:vi NextSheild chặn tất cả YouTube quảng cáo , tạo trải nghiệm xem video nhanh hơn , bảo mật hơn , không quảng cáo.
// @author             Airplane Mode - airpl4ne
// @icon               https://github.com/pillowslua/crackduo/blob/main/logo.png?raw=true
// @match              https://www.youtube.com/*
// @match              https://m.youtube.com/*
// @grant              none
// @license            MIT
// @noframes
// ==/UserScript==

// if you need support or you want help , please contact us!
// discord : t1wsk
// discord server : https://discord.gg/m3EV55SpYw
// we're going to make a YoutubeAdblocking API for free , if you want to use it , just contact us!
// big thanks to airpl4ne for giving me ideas & free codes!

(function() {
    'use strict';

    // css
    function applyMinimalStyles() {
        const style = document.createElement('style');
        style.textContent = `
            /* Notification styling */
            .simple-notification {
                position: fixed;
                top: 20px;
                right: 20px;
                padding: 10px 20px;
                background: #333;
                color: #fff;
                border-radius: 8px;
                box-shadow: 0 2px 8px rgba(0,0,0,0.2);
                z-index: 10000;
                font-family: Arial, sans-serif;
                font-size: 14px;
                opacity: 0;
                transform: translateY(-10px);
                transition: opacity 0.5s ease, transform 0.5s ease;
            }
            .simple-notification.show {
                opacity: 1;
                transform: translateY(0);
            }
        `;
        document.head.appendChild(style);
    }

    // notify
    function showNotification(message) {
        const notification = document.createElement('div');
        notification.className = 'simple-notification';
        notification.textContent = message;
        document.body.appendChild(notification);

        // fade in
        setTimeout(() => {
            notification.classList.add('show');
        }, 100);

        // fade out & removing notifi
        setTimeout(() => {
            notification.classList.remove('show');
            setTimeout(() => notification.remove(), 500);
        }, 3000);
    }

    // boost your video fps
    function enhanceVideoQuality() {
        const player = document.querySelector('video');
        if (!player || player.dataset.qualityEnhanced) return;

        // Access YouTube player API
        const ytPlayer = document.querySelector('#movie_player');
        if (!ytPlayer || !ytPlayer.getAvailableQualityLevels) return;

        // Mark as enhanced to prevent repeated attempts
        player.dataset.qualityEnhanced = 'true';

        // Get available quality levels
        const qualities = ytPlayer.getAvailableQualityLevels();
        // Prioritize highest quality (e.g., 'hd2160' for 4K, 'hd1080' for 1080p)
        const preferredQualities = ['hd2160', 'hd1440', 'hd1080', 'hd720', 'large', 'medium', 'small'];
        let selectedQuality = null;

        for (const quality of preferredQualities) {
            if (qualities.includes(quality)) {
                selectedQuality = quality;
                break;
            }
        }

        if (selectedQuality) {
            ytPlayer.setPlaybackQualityRange(selectedQuality);
            showNotification(`Video quality set to ${selectedQuality}!`);
        } else {
            showNotification('No higher quality available.');
        }

        // Attempt to prioritize high FPS (e.g., 60fps) by checking available streams
        // Note: YouTube's API doesn't directly expose FPS, so we infer from quality labels
        const playbackData = ytPlayer.getVideoData();
        if (playbackData && playbackData.isLive) {
            showNotification('Live stream detected; FPS optimization skipped.');
            return;
        }

        // Re-check available qualities after setting to ensure high FPS
        const qualityLabels = ytPlayer.getAvailableQualityLevels();
        const highFpsQuality = qualityLabels.find(q => q.includes('1080p60') || q.includes('720p60'));
        if (highFpsQuality && highFpsQuality !== selectedQuality) {
            ytPlayer.setPlaybackQualityRange(highFpsQuality);
            showNotification(`Switched to ${highFpsQuality} for higher FPS!`);
        }
    }

    // Ad-blocking functions
    function removeAntiAdblockPopup() {
        document.querySelectorAll('tp-yt-paper-dialog').forEach(dlg => {
            const isAdblockWarning =
                dlg.querySelector('a[href*="support.google.com"]') ||
                /adblock|allow\s*ads|blocker/i.test(dlg.innerText);

            if (isAdblockWarning) {
                console.log("[Userscript] Popup anti-adblock détecté → suppression.");
                dlg.remove();
                document.body.style.overflow = "auto";
                showNotification('Anti-adblock popup removed!');
            }
        });

        const backdrop = document.querySelector('tp-yt-iron-overlay-backdrop.opened');
        if (backdrop) {
            backdrop.remove();
            document.body.style.overflow = "auto";
        }
    }

    function bypassAgeRestriction() {
        const ageDialog = document.querySelector('ytd-enforcement-message-view-model');
        const player = document.querySelector('video');

        if (ageDialog) {
            ageDialog.remove();
            showNotification('Age restriction bypassed!');
        }

        if (player && player.paused && player.readyState === 0) {
            const isAgeBlocked = !!document.querySelector('ytd-player .ytd-watch-flexy[ad-blocked]');
            const videoId = new URLSearchParams(window.location.search).get('v');
            if (isAgeBlocked && videoId) {
                window.location.href = `https://www.youtube-nocookie.com/embed/${videoId}?autoplay=1`;
            }
        }
    }

    function skipAds() {
        const pipMode = document.querySelector('ytd-pip-container, ytd-miniplayer-player-container');
        const adVideo = document.querySelector('.ad-showing video');
        if (adVideo && adVideo.duration) {
            adVideo.currentTime = adVideo.duration;
            adVideo.muted = true;
            showNotification('Ad skipped!');
        }
        const skipBtn = document.querySelector('.ytp-ad-skip-button, .ytp-ad-skip-button-modern');
        if (skipBtn) {
            skipBtn.click();
            showNotification('Ad skipped!');
        }

        if (document.querySelector('.ad-showing')) {
            setTimeout(skipAds, 500);
        }
    }

    function removeAdBanners() {
        const selectors = [
            '#player-ads', '#masthead-ad', '.ytp-ad-overlay-container',
            '.ytp-ad-image-overlay', '.yt-mealbar-promo-renderer',
            '.ytp-featured-product', 'ytd-merch-shelf-renderer', 'ytd-in-feed-ad-layout-renderer',
            'ytd-engagement-panel-section-list-renderer'
        ];
        selectors.forEach(sel => {
            document.querySelectorAll(sel).forEach(el => {
                el.remove();
                showNotification('Ad banner removed!');
            });
        });
    }

    function keepVideoPlayingEarly() {
        const video = document.querySelector('video');
        if (!video || video.dataset.keepPlayingEarly) return;

        video.dataset.keepPlayingEarly = "true";

        const onPause = () => {
            if (video.currentTime <= 5) {
                video.play().then(() => {
                    showNotification('Video kept playing!');
                }).catch(err => {
                    console.warn("[Userscript] Impossible de play :", err);
                });
            }
        };
        video.removeEventListener('pause', onPause);
        video.addEventListener('pause', onPause);
    }

    // Initialize functionality
    applyMinimalStyles();

    let debounceTimeout;
    const observer = new MutationObserver(() => {
        clearTimeout(debounceTimeout);
        debounceTimeout = setTimeout(() => {
            removeAntiAdblockPopup();
            bypassAgeRestriction();
            skipAds();
            removeAdBanners();
            keepVideoPlayingEarly();
            enhanceVideoQuality();
        }, 100);
    });

    observer.observe(document.body, { childList: true, subtree: true });
})();