Is it possible to convert a Sketch file to an SVG without actually having Sketch or DrawIt? I know it's theoretically possible since they're both vector, but I use Windows and Linux, so I don't have a Mac to open the files with.
Figma is currently free for anyone to sign up and supports both Sketch import and SVG export. It's a fully-featured design tool that's browser-based so it should work on all three major platforms (OS X, Windows, and Linux). File import from Sketch isn't a perfect 1-to-1 mapping with Figma because both apps have slightly different feature sets, but it should get you 99% of the way there.