The best mp3 downloader works on windows and mac for music fans?

I am using V_L_C Media Player in macOS and it is a great free mp3 downloader tool for me. Honestly, it is not only a free, open-source, and cross-platform multimedia player and framework that supports playing a wide variety of audio and video formats, including MP3. It is well known for its versatility, lightweight design, and powerful features beyond just media playback. 

V_L_C can also convert media file formats, stream media over networks, and record desktop activities, among other capabilities.

Step 1: Play MP3 from local files or network streams. It can open MP3 files on your local computer or play MP3 streams from URLs.

Step 2: Click Convert/Save at the bottom. Under Profile, select an MP3 format (e.g., "Audio - MP3").

Step 3: Click Browse to choose the destination folder and name the output file ending with ".mp3".

Step 4: Click Start to begin the conversion. Once done, you will have an MP3 file saved locally.

However, V_L_C does not have a direct feature to download MP3 files from the internet in the sense of grabbing free MP3 downloads. It is useful for converting, extracting, and recording audio to MP3 on your computer.

If you want a mp3 downloader for mac that download music from websites or streaming services, specialized software are recommended.