There are a few existing threads but they all seem to be pretty ancient and these things change.
The one I used most recently, ClipConverter (a website service so no installation) is now subverted.
Is there still a reasonably easy (preferably free) way to do this?
Want it for class use. I have a small collection but need something new since I have resitting students on a course.
Less essential now because internet performance is better, but I might want this for a test, and for that I’d want the file locally.