: Beyond YouTube, it supported audio extraction from SoundCloud , Facebook , Vimeo , TikTok , and Instagram .
: When downloaded from the official 4K Download website , the software is considered safe and verified to be free of malware by multiple antivirus engines.
: The original 4K YouTube to MP3 has been largely superseded by 4K YouTube to MP3 Plus , with support for the original non-plus version officially ending in early 2026. 4K YouTube to MP3 3.3.7
: A "Paste Link" design intended to minimize complex settings.
4K YouTube to MP3 version 3.3.7 is a legacy release of the popular desktop application designed to extract and convert audio from online video platforms. While newer versions (such as ) have since been released, the 3.3.x branch remains a notable part of the software's history, predating the current "Plus" branding transition. Core Functionality As of its release period, the application specialized in: : Beyond YouTube, it supported audio extraction from
: It allowed bitrates ranging from 128kbps up to 320kbps , though actual quality is limited by the source file's original upload.
: Automated creation of playlist files for easy playback in standard media players. Current Status & Safety : A "Paste Link" design intended to minimize
: The ability to download entire playlists or channels rather than just single videos.