Open Youtube app from your mobile or go to YouTube official website from any browser of your device. Search the video you want to convert and download. Copy the video link.
Go to YTVID converter site using any of your browser. Paste the YouTube video link taht you previously copied, into the YTVID converter's search box, then press Search button. Or you can simply search any kind of youtube video on YTVID converter's search bar.
Wait while the YTVID conversion tool convert the video. Choose the right quality and perfect file format you want to download. Your file will be downloaded automatically. Enjoy local downloaded file watch and listen them whenever you want.