The fastest way to convert a YouTube video to MP4 is to paste its URL into dltkk.to, select MP4, and click Download. No software install, no account, works on any device. Here is everything you need to know about getting the best result.
dltkk.to accepts all standard YouTube URL formats. Full desktop URLs like https://www.youtube.com/watch?v=XXXXXXXXXXX work. Short share URLs like https://youtu.be/XXXXXXXXXXX work. YouTube Shorts URLs like https://www.youtube.com/shorts/XXXXXXXXXXX work. YouTube Music URLs that begin with music.youtube.com work. Playlist URLs work — dltkk.to will download the currently-loaded video from the playlist URL. Mobile YouTube app share links also work since they resolve to the same format. If the URL contains a valid YouTube video ID, dltkk.to can process it.
Select 1080p for tutorials, educational content, gaming videos, and any content where you need to read on-screen text or see fine visual detail. Select 720p for general entertainment content, vlogs, music videos, and anything you will watch on a phone screen where 1080p and 720p look identical at normal viewing distance. Select 480p if you are on a slow connection, storing many videos in limited space, or downloading content for a device with a low-resolution display. For audio extraction, skip MP4 entirely and choose MP3 or FLAC — you get a much smaller file with just the audio.
To download multiple YouTube videos as MP4, use dltkk.to batch mode. Switch to batch mode, paste up to 10 YouTube URLs one per line, select MP4, and click Download All. Each video processes and saves as a separate MP4 file automatically. For larger playlists beyond 10 videos, run multiple batch sessions. Full guide: YouTube playlist downloader.
YouTube Shorts download as vertical 9:16 MP4 files that are immediately ready to upload to TikTok, Instagram Reels, or any other vertical video platform. No aspect ratio conversion or re-editing needed. Copy the Shorts URL, paste into dltkk.to, select MP4, download. The resulting file is a standard vertical MP4 ready for any short-form video platform. For cross-posting Shorts to Instagram Reels specifically, see: YouTube Shorts to Reels guide.
MP4 files downloaded from dltkk.to include the full original audio track at the same quality YouTube serves it. The audio is embedded directly in the MP4 container and plays in sync with the video in every standard media player. If you want audio only without the video, select MP3 or FLAC instead of MP4 and the download will be audio-only at a fraction of the file size.
MP4 files from dltkk.to play in Windows Media Player, QuickTime on Mac, VLC on any platform, the Files app on iPhone, Google Photos on Android, and any web browser. If you experience any playback issue, VLC Media Player (free, open-source, available for all platforms) plays every MP4 file without exception regardless of codec or quality level. Install it once and never have a compatibility issue again.