Use YouTube’s own download or offline features where available, such as YouTube Premium
Download only audio or videos that are explicitly licensed for reuse, such as Creative Commons content
Use content from the YouTube Audio Library when permitted by its license terms
Get written permission from the copyright owner before converting or downloading the audio
Use royalty-free or public domain audio uploaded to YouTube with clear reuse rights
Follow the terms of service of YouTube and the rights granted by the content owner
Avoid converting copyrighted music or videos without authorization
Check the video description for licensing details before using any content
Use legal music services that provide offline downloads or MP3 purchases instead of ripping from YouTube