4k-youtube-to-mp3

Install command: 
brew install --cask 4k-youtube-to-mp3

Name: 4K YouTube to MP3

Turn YouTube links into MP3 files

https://www.4kdownload.com/products/youtubetomp3/1

Cask JSON API: /api/cask/4k-youtube-to-mp3.json

Cask code: 4k-youtube-to-mp3.rb on GitHub

Current version: 25.3.1

Requirements: macOS >= 10.13

Versions:

Intel tahoe 25.3.1
sequoia 25.3.1
sonoma 25.3.1
ventura 25.3.1
monterey 25.3.1
big sur 25.3.1
catalina 25.3.1
mojave 25.3.1
high sierra 25.3.1

Analytics:

Installs (30 days)
4k-youtube-to-mp3 46
Installs (90 days)
4k-youtube-to-mp3 155
Installs (365 days)
4k-youtube-to-mp3 675