I need to download audio from YouTube in MP3 format

For me, one of the main factors in choosing a youtube to mp3 converter was that the site should be safe and not spread viruses. I settled on ytmp3 precisely because it was tested by my friend and I was sure it didn't contain anything suspicious. Many other sites are literally flooded with pop-ups or offer to install suspicious software, but this one is clean. I'd say this is one of the most convenient services I've used.