Note: It may take some time to convert the video to Mp3 depending on your file size and internet speed. Step 2: Make sure that Mp3 is selected in the dropdown and hit the ‘Convert’ button. Converto will automatically start searching for your video. Copy and paste the Youtube URL for the video or song you want to convert to mp3 and click on the download button, in the box. Simply follow these steps to download audio from YouTube: You can convert your music videos and YouTube podcasts into Mp3 files. If you are looking for a reliable web-based tool to convert your YouTube videos to Mp3, especially for long-term usage, Converto is one of the best choices you have. Download Audio From A YouTube Video Using Converto Here’s a list of 5 online tools to download your YouTube audio online for free: A. The easiest way to download YouTube audio from the videos is to convert it to Mp3 (the most optimized format for audio files) using an online converter. How to Download Audio From any YouTube Video for free on Mac and Windows With the easiest online video editing app Try InVideo today 1.