Something we'll be focusing on in the next release cycle is much better export and import to/from other formats. We already have pretty good HAR support, and that's going to get much better soon. I don't know if the SAZ format is well-documented... but Fiddler is an excellent tool and we'd like to be able to work alongside it. I'd certainly merge SAZ support if, say, I woke up tomorrow morning to a PR implementing it.

There's a Fiddler version for Linux (based on mono) which, in my experience, works quite well. Easier than starting up a windows VM.

The killer feature of Fiddler, for me, is the timeline display which we use to optimise network heavy apps.

Kind of a non-starter for me, as this is a headless cloud VM with more RAM and CPU than any PC I've ever owned. If I were to actually install X, Xrdp, etc... I'm not in a better situation than simply using Windows in the first place.

And I suppose it's been long enough since trying Fiddler for Linux that I should reserve my experiences from last time around. I've gotten pretty used to mitmproxy. Seems to be the defacto, goto tool for HTTP captures on Linux.

Why wouldn't X window forwarding be ok?

I've never had X forwarding work well enough to actually be usable, and last time I checked NX was still a massive (/non-free) pain to setup.

Besides, I already have a workflow that works perfectly fine, is headless as I prefer, works with mitmproxy, etc.

Also, I installed Fiddler from AUR again this afternoon and it just looked awful. The settings menus were unreadable, for example.