Question: how to download youtube video to mp3 or mp4?
Answer: STEP 1: copy video link (URL address) via social share button on video, from the browser or Youtube app. STEP 2: paste video link into the search box of Ymp4 & hit GO. You can search Youtube from that box. STEP 3: pick quality and format, hit Download button to save Yotube video as mp4 or mp3 on your device.