The phrase describes a category of online tools and software designed to extract audio (MP3) or video (MP4) files from content hosted on YouTube. For example, an individual may use such a tool to download a song from a YouTube music video in MP3 format for offline listening, or to save an instructional video in MP4 format for later viewing without an internet connection.
The prevalence of these tools stems from the desire for content accessibility and portability. Users seek to overcome limitations imposed by YouTube’s streaming-only model, enabling them to enjoy content on devices without consistent internet access or to archive videos for personal use. The emergence of these converters reflects a broader trend of consumers wanting greater control over their media consumption.