What screen are you actually watching on?
The comparison above gives you the numbers; here's the reasoning behind them. The right resolution depends on the screen, not the video. On a phone held at arm's length, 720p and 1080p are close to indistinguishable — the pixels are physically too small for your eyes to separate. On a 24-inch monitor or a living-room TV, the gap is obvious, and 1080p earns its extra megabytes.
Content matters as much as screen size. A talking-head interview survives 360p fine, because faces compress well and barely move. Fast sports and text-heavy coding tutorials don't — motion smears, and small type turns to mush. When there's fine detail you need to read, go up a tier.
Match the resolution to the screen you'll watch on, not to the biggest number on the list.
Why MP4? A 60-second codec explainer
MP4 is a container, and the version we serve carries H.264 video — the most widely supported codec ever shipped. Effectively everything made since 2010 plays it natively: phones, smart TVs, car head units, game consoles, and PowerPoint on the meeting-room laptop.
YouTube itself often streams WebM with the VP9 codec instead. It's genuinely more efficient — roughly 20–30% smaller at the same quality — but device support is patchy. Your TV might handle it. Your car's head unit almost certainly won't.
As a YouTube to MP4 converter, we default to MP4. Slightly larger files, zero "format not supported" errors. That trade is worth taking every single time.
When 1080p isn't on the list
If the uploader's original file was 720p, then 1080p doesn't exist anywhere — not on YouTube, not here, not on any downloader with an honest interface. Nobody can conjure resolution that was never recorded, so the option simply won't appear in your list.
Very new uploads are the other case. YouTube processes low resolutions first and the higher ones minutes to hours later, so a video published twenty minutes ago may only show 360p for now. Come back in an hour and the full list is usually there. And to be plain about one hard limit: we can't download private or members-only videos at any resolution — here's the full list of what won't download, and why.
MP4 is the default for a reason, but it isn't always the answer. If it's an hour-long interview you'll listen to on a run, the picture is dead weight — convert it to MP3 instead, and a 700 MB video becomes a roughly 55 MB audio file. Still weighing it up? MP4 vs MP3 lays out when each one wins.
Vertical clips are their own case. The Shorts downloader keeps the 9:16 portrait frame exactly as uploaded, instead of squeezing it into a widescreen box where black bars do most of the work.
Sometimes you don't need the video at all, just its cover image for a slide deck or a page of notes — the thumbnail downloader grabs that image in every size YouTube stores.
And if you're not sure what you want yet, start at the main YouTube downloader: paste any standard link and it lays every format out side by side, video and audio together. First time saving to a phone? The step-by-step guide shows exactly where files land on Windows, Mac, Android, and iPhone.