Draw.io is my go-to tool on any platform now. I did an entire bachelors and masters using it for all my diagrams.
I like OmniGraffle but personally I didn't think it was worth it when draw.io was free anyway. Like I don't feel it was $150-$250 better than draw.io, especially since it's not cross platform.
Draw.io’s development philosophy is just too cool: “doesn’t use artificial scarcity to produce a bloated sales-centric company with matching revenues.”
Draw.io all the way. I've operated as a Network Consultant and Architect for the last 3 years using it exclusively. Not only is it great, it's fast and cross-platform. I will never use visio again.
Have you ever tried Excalidraw? It doesn’t have as many features but with the keyboard shortcuts you can whip up diagrams so fast. It’s just so nice to draw in.
We use Excalidraw at work. I have a friend who uses it for everything.
I've played with it, and it seems pretty ok; the only reason I haven't used it much is because draw.io has been good enough, but I really should give it more of a test drive before I draw any conclusions.
I like OmniGraffle but personally I didn't think it was worth it when draw.io was free anyway. Like I don't feel it was $150-$250 better than draw.io, especially since it's not cross platform.