Fantastic converter!
This does a pretty good job of using OCR to convert SUP subtitles. Not perfect, but none of them are and it’s definitely better than the only other Mac-native alternative that I’ve used in some ways. I do wish it would show the results against the original subtitles to make it easier to fix errors, but I get by. I’d also very much prefer to load subtitle files by right-clicking, or at least dragging-dropping the file into the app’s window.
$1K Master about Subtitle Extractor, v4.0