# youtube-dl > Download videos from YouTube and other websites. > Homepage: . - Download a video or playlist: `youtube-dl {{https://www.youtube.com/watch?v=oHg5SJYRHA0}}` - Download the audio from a video and convert it to an MP3: `youtube-dl -x --audio-format {{mp3}} {{url}}` - Download video(s) as MP4 files with custom filenames: `youtube-dl --format {{mp4}} -o {{"%(title)s by %(uploader)s on %(upload_date)s in %(playlist)s.%(ext)s"}} {{url}}` - Download a video and save its description, metadata, annotations, subtitles, and thumbnail: `youtube-dl --write-description --write-info-json --write-annotations --write-sub --write-thumbnail {{url}}` - From a playlist, download all "Let's Play" videos that aren't marked "NSFW" or age-restricted for 7 year-olds: `youtube-dl --match-title {{"let's play"}} --age-limit {{7}} --reject-title {{"nsfw"}} {{playlist_url}}`