Where can I safely convert YouTube to MP3?

Hello there, I'm curious about finding a reliable and secure way to convert YouTube videos into MP3 audio files. With the abundance of online tools available, it's challenging to discern which ones are trustworthy and which might compromise my data. Could you recommend a few reputable websites or applications that enable me to safely convert YouTube content into MP3 format, ensuring that my privacy and device security remain intact? I'd appreciate your insights and guidance on this matter.