Anons, does anyone have a good suggestion about any free "video downloading" software or a website that anons can use to save videos we see online, please?

For about 2.5 years I used something called "ANY VIDEO CONVERTER" and it did a fine job, but lately things changed and, sadly, I'm too broke to pay for the premium service now offered.

Fortunately I grabbed about every damning video needed for my research project but every now and then I see something else that I might want to save, so I thought I'd see if anyone here has a suggestion, please.

Thank you very much.