Download videos from YouTube, Bilibili, Twitter, and thousands of other sites using yt-dlp. Use when the user provides a video URL and wants to download it, extract audio (MP3), download subtitles, or select video quality. Triggers on phrases like "下载视频", "download video", "yt-dlp", "YouTube", "B站",

yt dlp Video Downloader Download videos from thousands of websites using yt dlp. Prerequisites Before downloading, verify dependencies are installed: If not installed, install them first: Quick Start Basic Download (Best Quality) YouTube Download (Recommended with cookies) YouTube often blocks direct downloads with 403 errors. Always use browser cookies for YouTube: Supported browsers: chrome , firefox , safari , edge , brave , opera Download with Custom Output Path Common Tasks 1. Download Video (Default Best Quality) 2. Extract Audio Only (MP3) 3. Download with Subtitles 4. Download Specific Quality 720p: 1080p: Best available: 5. List Available Formats (Before Download) Then download specific format by ID: 6. Download Playlist 7. Download with Thumbnail Workflow When user provides a video URL: 1. Identify the platform : YouTube/YouTube Music → Always use cookies from browser chrome Other sites → Try without cookies first 2. Ask what they want (if not specified): Just download the video? Extract audio only? Need subtitles? Specific quality? 3. Construct the command based on requirements 4. Execute the download using Shell tool with required permissions: ["all", "network"] 5. Handle errors : 403 Forbidden → Retry with cookies from browser Connection issues → yt dlp auto resumes, just retry Format unavailable → Use F to list formats, then select 6. Report the result file location and any errors Example Interaction User: "帮我下载这个视频 https://www.youtube.com/watch?v=xxx" Response: User: "下载这个视频的音频 https://www.bilibili.com/video/xxx" Response: User: "下载这个 Twitter 视频 https://twitter.com/xxx/status/123" Response: Supported Sites yt dlp supports thousands of sites including: YouTube, YouTube Music Bilibili (B站) Twitter/X TikTok, Douyin (抖音) Vimeo Twitch And many more... Full list: https://github.com/yt dlp/yt dlp/blob/master/supportedsites.md Troubleshooting Common Errors and Solutions Error Cause Solution HTTP 403 Forbidden YouTube blocks unauthenticated requests Use cookies from browser chrome Video unavailable Geo restricted or private Use cookies or VPN Download interrupted Network issues Retry yt dlp auto resumes Format not available Requested format doesn't exist Use F to list formats Error: "yt dlp: command not found" Error: "ffmpeg not found" (for audio extraction) Error: HTTP 403 Forbidden (YouTube) This is the most common YouTube error. Always use cookies for YouTube: Supported browsers: chrome , firefox , safari , edge , brave , opera Error: Video unavailable or geo restricted Error: Download keeps failing Best Practices 1. YouTube downloads : Always use cookies from browser chrome 2. Large files : yt dlp auto resumes, just retry if interrupted 3. Keep yt dlp updated : pip install U yt dlp 4. Check formats first : Use F before downloading if unsure

yt-dlp-downloader