The easiest way to get these is via the Homebrew tap, as the install will take care of any eventual dependencies that are not already available on your system.

Extract app bundle icon as png

Show analytics information for casks in the main taps

Quickly repair outdated/broken Casks from homebrew-cask

Make animated gifs from a video file

Calculate and present total running time of media files in a human-readable way

Create bootable Linux USB sticks from ISOs on macOS

Losslessly compress files

Make an icns file from a png

Download Magic: The Gathering wallpapers

Rename image files to the date and time they were taken

Stitch a video with its reversed version, for continuous loops

Generate a podcast RSS feed for audiobooks

Overlay a progress bar on videos or gifs

Convert a video or audio file to an iPhone ringtone

Sort RSS items by number in title and upload the result to temporary hosting

Rename files in a numerical sequence

Upload paths, with support for several file hosts

The Unlicense (Public Domain, essentially)