Please write a single answer per comment to clearly see the most popular tools. Vote on the ones you like.
There were too many options in this post and I want to see what are the really interesting ones.
To complement this post:
What file-sharing and media organizing software do you wish that existed?
yt-dlp for downloading videos from various websites.
This one is amazing, especially when you realise various websites means, nearly any streaming platform. SoundCloud, Mixcloud, Bandcamp etc, it knows them and can download whole archives of files. As we watch Twitter and Reddit totter and crumble it’s time to realise this will happen with the sites that host your favourite podcast, unless you make offline copies
Recently found out about Stacher which is a GUI for yt-dlp
I use this one. Extremely fast and easy to use once you figure it out.