Updated March 2026  ·  5 min read

How to Convert YouTube Videos to MP4 in 2026

You want the video as a file on your device. That's the whole job. Here's the fastest way to do it without installing anything, creating an account, or clicking through a field of fake download buttons.

Step by Step

Which Quality Should You Pick?

This matters more than most guides admit. Here's the honest breakdown:

• 4K (2160p) — only worth it if you have a 4K monitor or TV. File sizes are 3–5x larger than 1080p. Most YouTube content wasn't shot in 4K anyway.
• 1080p — the right choice for almost everyone. Full HD, reasonable file size, plays on everything.
• 720p — good for mobile viewing or if you're tight on storage. Half the file size of 1080p with barely noticeable quality difference on a phone screen.
• 480p and below — only use this for archiving content where quality doesn't matter, or for very slow connections.

Why Other Tools Are Worse Than They Used to Be

YouTube updates its video delivery system periodically, and most downloader sites lag behind those updates. When they lag, downloads fail or return corrupt files. Tools that update their extraction code quickly — like dltkk — stay reliable. Tools that don't get reported as "broken" on Reddit every few months.

The other common problem is fake download buttons. On ad-heavy sites like Y2Mate, the button you see on screen is often an ad overlay. The actual download button is underneath it or elsewhere on the page. dltkk has one input field and one download button. No overlays, no pop-ups between you and the file.

Does This Work on iPhone?

Yes, with one extra step. iOS handles downloads differently from Android and desktop.

• Use Safari (not Chrome) on iPhone for the best download experience
• After tapping Download, the file saves to Files → Downloads
• To move it to your Photos app: open Files, tap the video, tap the Share icon, tap Save Video
• The video then appears in your camera roll like any normal video

What About Downloading Full Playlists?

dltkk handles individual videos. For downloading entire playlists, the right tool is yt-dlp — a free open source command-line tool. The command is straightforward:

If you're not comfortable with the command line, download videos one at a time with dltkk.

Is This Legal?

YouTube's Terms of Service restrict downloading outside their official app. In practice, personal use — downloading a video to watch offline on your own device — is treated as fair use in most countries including the US, UK, Canada, and Australia. Distributing or reuploading downloaded content is where legal problems arise. Keep downloaded videos for personal use only.

Frequently Asked Questions