I'm sure that name is already taken. I'll come up with a new name at some point. Maybe.
Hexed is a hex editor (actually, right now, a hex viewer - no editing is possible) that runs within Electron.
"But wait? Isn't that horribly inefficient?"
Yep.
It was also very quick to write and lets me add in features that I want, most of which have to do with writing small snippets of JavaScript to manipulate data and see how it works.
Right now getting Hexed up and running should be as simple as installing node and yarn, and then running yarn install. Once everything is installed, it can be run using yarn start.