I've been using meld, also didn't see any ads in it yet. I didn't realize defaulting to websites for diffing was a thing. The closest thing I know to that is github pull requests, which also show no ads afaik.

Nothing against the littlediffer project, I just really wonder what ad-ridden diff tools the title would be referring to

I was about to drop into my spiel about “it isn't so much the adverts that bother me about web-based things, it is the stalky tracking”. Though after checking I was pleasantly surprised to find it doesn't make a pile of third-party requests as some ad-free-but-still-part-of-the-stalkerverse sites do.

I don't really trust such tools unless I host them myself (in DayJob I'm not allowed to trust such tools, lest I accidentally paste information about clients' people/customers into a site that posts the data out of the country) but at least this one is starting out OK, so congratulations to the creator for making something working and clean (even if it is ultimately of limited use as local tools work much better for this purpose).

It is sad that “without stalkyness and other unnecessary bulk & distractions” isn't the norm (even for desktop utilities too often) so can be pointed out as a special feature, but that is the world we live in…

  $ man diff | grep -A1 'SEE ALSO'
  SEE ALSO
         wdiff(1), cmp(1), diff3(1), sdiff(1), patch(1)

I think there's some kind of affiliate program going on...

I haven't known that I need a browser to diff two files. I always did that in the terminal, local only. Didn't know that we need some many comupting time to create a diff. /s