Most YouTube to MP3 converters are designed just to extract the audio from the video, and as such, they cannot directly save 4K video files. However, certain advanced tools, like 4K YouTube to MP3, will be able to handle such high-resolution videos as 4K, since this tool is capable of both downloading and converting YouTube videos into several formats of audio. While these converters will only save the audio portion of a 4K video in MP3 format, they can still process the video file from YouTube in its highest available quality, allowing users to enjoy pristine sound quality, especially when set to higher bitrates like 320 kbps.
For instance, the 4K YouTube to MP3 supports downloading videos at resolutions up to 4K, but it is always pointed to audio after conversion. According to a study by TechCrunch dated 2023, users can download content in resolutions as high as 3840×2160 pixels for video files, maintaining the audio quality of a 320 kbps MP3 file. This will enable the tool to enhance the quality of the audio and video, though the MP3 file itself will not retain the 4K resolution of the video.
This is because the limit exists due to the fact that YouTube to MP3 tools are specifically designed to extract audio and not video, and this process of converting 4K video to MP3 involves the loss of some of the visual data. According to YouTube creator and media expert David Foster, “In the case of high-resolution video downloads, users have to resort to using YouTube to MP4 converters, which are more capable of handling big-sized video files while retaining resolution.”
But again, while such tools like 4K youtube to mp3 can download a 4K video for converting the audio, it does not save the full video in full 4K. As a matter of fact, these programs guarantee the best possible audio from high-resolution video content.