YouTube to MP3 converters typically require an internet connection for downloading content from YouTube, but some versions, like the desktop software 4K youtube to mp3, offer offline functionality. According to 2023 user feedback, over 50% of users who rely on this software appreciate its offline conversion feature, allowing them to convert and save audio files without needing a continuous internet connection. The software’s ability to download videos in bulk for offline processing ensures that users can enjoy audio files later, even without Wi-Fi or mobile data.