Downloaded MP3 files will have a bitrate of 320 kbps and a sample rate of 48kHz. This tool is free and does not force you to signup.ģ20youtube is also a similar website where you can just enter the video URL and download the 320kbps MP3. It can only convert videos of up to 90 minutes in length. The good thing about this online YouTube to Mp3 Converter tool is that it converts video to MP3 in the highest available quality. It quickly rips audio from YouTube and you can then download it with a single click. This online YouTube to MP3 converter also offers MP4 conversion if you want. You just need to enter the video URL and then press the convert button. YTMP3 Video Converter is my favorite tool that I used to convert and download copyright-free music from YouTube.