Real 4K begins with the upload
The source must include a 2160p stream. TubeMP4 requests the available master rendition and does not upscale a lower-resolution upload.
2160p · TubeMP4 Pro
YouTube 4K downloader
Use TubeMP4 when you need the original 4K rendition for an upload you own, licensed archival work, or an authorized editing workflow.
✓ No extension✓ Source-aware quality✓ Direct to device
Why 4K needs processing
YouTube commonly separates high-resolution video from audio. The provider prepares a combined output, which can take longer and use significantly more bandwidth than 1080p.
Questions
Useful answers before you download
Why is 4K missing?
The original may not include 2160p, the video may be restricted, or the current provider may not expose that rendition.
Is 4K free?
TubeMP4 reserves 2K and 4K processing for Pro because of provider and transfer cost.
Will the result include audio?
TubeMP4 requests a prepared output with audio, but availability still depends on the provider.