Downloading YouTube videos in 4K requires a desktop app — browser-based tools cap at 1080p. Three apps consistently work: 4K Video Downloader, SnapDownloader, and yt-dlp. All three handle the new YouTube anti-download protocols better than browser tools.
Here's the working method for each, plus the file sizes to expect, the legal limits, and the alternatives for users who don't want to install software.
How to download YouTube videos in 4K — step by step
Method 1: 4K Video Downloader (recommended)
- Download 4K Video Downloader from 4kdownload.com.
- Install. Free tier supports 30 downloads per day.
- Open the app.
- Copy the YouTube video URL.
- Click "Paste Link" in the app.
- Pick quality — select 2160p (4K) from the dropdown.
- Pick format (MP4 is universal, MKV for higher quality).
- Click Download.
Free tier covers most personal use. Paid version ($45 one-time) unlocks unlimited downloads, channel-wide batch downloads, and 8K support.
Method 2: SnapDownloader
- Download SnapDownloader from snapdownloader.com ($19.95 one-time, 7-day trial).
- Install. Open.
- Paste YouTube URL.
- Pick 4K from the quality dropdown.
- Click Download.
SnapDownloader's main advantage: handles regions where YouTube blocks downloaders aggressively. It also supports playlist + channel batch downloads.
Method 3: yt-dlp (free, command-line)
For technical users. yt-dlp is the most reliable downloader because it's open-source and updated constantly. Free forever.
- Install yt-dlp (pip install yt-dlp on Mac/Linux, or download Windows binary).
- Open terminal.
- Run:
yt-dlp -f "bestvideo[height<=2160]+bestaudio/best" [YOUTUBE-URL] - The MP4 lands in your current directory.
Command-line means no GUI distractions, no ads, no nag screens. Every other downloader is downstream of yt-dlp's research.
File sizes to expect
4K MP4 files are large:
| Resolution | Bitrate | File size per minute |
|---|---|---|
| 1080p | ~5-8 Mbps | ~50-60 MB |
| 1440p (2K) | ~10-16 Mbps | ~100-120 MB |
| 2160p (4K) | ~25-45 Mbps | ~200-350 MB |
| 4K HDR | ~50-80 Mbps | ~400-600 MB |
A 10-minute 4K video runs 2-4 GB. Make sure you have storage and bandwidth before starting.
Why browser-based downloaders cap at 1080p
YouTube serves 4K through a different streaming pipeline that requires more sophisticated parsing — beyond what browser-based JavaScript tools can do reliably. Google has also made 4K streams harder to extract through web-based scraping. Desktop apps overcome this because they can parse the YouTube streaming manifest directly.
If a browser-based tool claims 4K download, test it before trusting. Most lie or deliver a 1080p file labeled "4K."
When 4K isn't available for a video
Three reasons a YouTube video may not be 4K:
- The creator uploaded the video at lower resolution (most YouTube videos are still 1080p or below).
- YouTube hasn't finished encoding the 4K version (takes hours for new uploads).
- The video is age-restricted or copyrighted, limiting available quality tiers.
If 4K isn't in the quality dropdown, the source video doesn't have a 4K version. No tool can create one.
Can you download YouTube in 4K on mobile?
Mostly no. iOS doesn't allow third-party downloaders capable of 4K. Android has more options but still struggles compared to desktop. The reliable path: download on desktop, transfer to phone.
YouTube Premium offline supports up to 1080p on mobile — useful but not 4K.
Legality of 4K downloads
Same rules as any YouTube download:
- Personal use: Legal grey area in most countries; technically against YouTube ToS.
- Re-upload or commercial use: Copyright violation. Don't.
- Creative Commons videos: Some are licensed for download and reuse with attribution.
- Your own uploads: Fully legal — download from YouTube Studio.
Alternatives if you don't want to install software
- YouTube Premium offline. Caps at 1080p, but legal and convenient.
- Screen capture. Quality drops, but lets you grab any video on your screen.
- Request from creator. Many creators share original 4K files on Vimeo or via direct request.
- Vimeo or original source. If the video also lives on Vimeo or the creator's own site, those often allow native 4K downloads.
Mistakes to avoid
- Installing browser extensions that demand access to all browsing data
- Downloading from sites that ask for cryptocurrency payment
- Using a tool that hasn't been updated in 6+ months — YouTube changes its API regularly
- Trusting "4K download" promises from browser-based sites without testing
Batch downloads (playlists + channels)
For downloading multiple videos:
- 4K Video Downloader paid: "Subscribe" to a channel; auto-downloads new uploads.
- yt-dlp: Pass a playlist or channel URL; downloads all videos with one command.
- SnapDownloader: Built-in playlist + channel batch support.
Useful for research, archiving, or backing up your own channel.
FAQ
How do I download YouTube videos in 4K?
Use a desktop app — 4K Video Downloader, SnapDownloader, or yt-dlp. Browser-based tools cap at 1080p.
Are 4K YouTube downloaders free?
yt-dlp is free forever. 4K Video Downloader has a free tier (30 downloads/day). SnapDownloader is paid ($19.95 one-time).
Can I download YouTube in 4K on mobile?
Mostly no. Mobile downloaders cap at 1080p in most cases. Use desktop and transfer the file.
How big is a 4K YouTube video file?
200-350 MB per minute for standard 4K. 400-600 MB per minute for HDR. A 10-minute 4K video runs 2-4 GB.
Is it legal to download YouTube videos in 4K?
Same rules as any YouTube download. Personal use is a legal grey area; re-upload or commercial use is a copyright violation.
Next steps
For occasional 4K downloads: install 4K Video Downloader's free tier. For regular work: pick yt-dlp or SnapDownloader. For full legitimacy: pay for YouTube Premium and use offline mode (1080p cap).
For more YouTube guides, read how to save a YouTube video, saving YouTube audio, and best times to upload to YouTube.
