Context:
Compiler Explorer is an interactive compiler exploration website. Edit code in C, C++, C#, F#, Rust, Go, D, Haskell, Swift, Pascal, ispc, Python, Java, or any of the other 30+ supported languages, and see how that code looks after being compiled in real time. Multiple compilers are supported for each language, many different tools and visualizations are available, and the UI layout is configurable (thanks to GoldenLayout).
Try out at godbolt.org, or run your own local instance. An overview of what the site lets you achieve, why it's useful, and how to use it is available here.
Bookmarked, thank you for your work here.
I have Greenshot on my Windows work machine, or should not be listed as Linux only.
There are a few others that I definitely will be looking into, so thanks again. Unfortunately my work is going to change to a Mac so I may have to find an entirely new list soon.