Free Open Source Software

• Media/Video Players
  • IINA, Swift, GNU General Public License version 3
• Utilities
  • Caffeine, https://github.com/benjohnde/Caffeine, Helps your Mac to stay awake
  • KeepingYouAwake, https://github.com/newmarcel/KeepingYouAwake, Prevents your Mac from going to sleep
• Calendar
  • Itsycal, https://github.com/sfsam/Itsycal, Itsycal is a tiny calendar for your Mac's menu bar
• Book Reader
  • Calibre, Python, https://github.com/kovidgoyal/calibre
• Music
  • LyricsX, https://github.com/ddddxxx/LyricsX, Lyrics for iTunes, Spotify, Vox and Audirvana Plus
• CSV
  • TableTool, https://github.com/serhii-londar/open-source-mac-os-apps
• Finder Extension
  • FiScript, https://github.com/Mortennn/FiScript

Photo Editing

More

• http://opensourcemac.org/
• https://www.makeuseof.com/tag/free-open-source-mac-apps/
• https://github.com/jeffreyjackson/mac-apps
• https://github.com/serhii-londar/open-source-mac-os-apps