While for "simple" diffs these UIs are "fine", I'm still struggling (after 15+ years of search) for a really good tool that could help me with 3-file diffs...
I'm still stuck with (k)diff3, and, while they work, I would really like to a more integrate web interface for my projects
I'm sick of coming here and see "open source" as something with "moral values" - stealing it from the free software with "the magic" of conflating the two concepts.
Open source is just big software companies stealing from innumerable volunteers