FLVto is described as 'lets you download YouTube videos by URL and convert them into other formats such as mp3, avi and mp4. It can download multiple files simultaneously and has a built-in audio player and ID3 tag editor for music' and is an app in the Audio & Music category. There are more than 100 alternatives to FLVto for a variety of platforms, including Windows, Online / Web-based, Mac, Android and Linux. The best alternative is youtube-dl, which is both free and Open Source. Other great apps like FLVto are Youtube-DLG (Free, Open Source), 4k Video Downloader (Freemium), Video DownloadHelper (Freemium) and ClipGrab (Free, Open Source).