Tampermonkey — Local Youtube Downloader

// Get video ID from URL const videoId = new URLSearchParams(window.location.search).get('v'); if (!videoId) return;

// Wait for page to load setTimeout(addDownloadButtons, 3000);

yt-dlp -f "bestvideo+bestaudio" --merge-output-format mp4 "https://youtu.be/..." But for quick, local, no-install needs, the Tampermonkey script above works as a . local youtube downloader tampermonkey

// Video button const videoBtn = createButton('📹 Download Video (MP4)', 'video'); // Audio button const audioBtn = createButton('🎵 Download Audio (MP3)', 'audio');

// Create button container (next to like/dislike bar) const menu = document.querySelector('#top-level-buttons-computed'); if (!menu) return; // Get video ID from URL const videoId

// Button click handler videoBtn.onclick = () => fetchStreams(videoId, 'video', videoTitle); audioBtn.onclick = () => fetchStreams(videoId, 'audio', videoTitle);

try []; const allFormats = [...formats, ...adaptiveFormats]; if (!videoId) return

const container = document.createElement('div'); container.style.marginLeft = '10px'; container.style.display = 'inline-flex'; container.style.gap = '8px';