mp32flv is described as 'tool for uploading mp3 files to youtube. Simply upload mp3, add an image, login to youtube and your file will be uploaded onto youtube. Alternatively save the flv file and upload yourself'. There are three alternatives to mp32flv, not only websites but also apps for . The best alternative is Audioship, which is free. Other great sites and apps similar to mp32flv are TunesToTube (Free) and Tovid.io (Free).