C Downloader Projects
Lightweight CLI download accelerator (by axel-download-accelerator)Project mention: Give your Mac (imaginary) unlimited storage thanks to Disk Utility’s bug | news.ycombinator.com | 2020-12-26
That said, "download accelerators" were also clever programs that would create multiple connections with the origin and use Range headers to download different parts of the file.
Wonder why I don't hear of them anymore. Maybe because server upload bandwidth is more often generous enough to saturate your bandwidth these days?
You can do this from the command line with axel: https://github.com/axel-download-accelerator/axel