I was after the same end result, and used Fabricator. Actually, I ended up just using the actual NPM package that drives Fabricator instead and managed to achieve the output I was after.

I've used Astrum. Very easy to integrate and customize. http://astrum.nodividestudio.com/

Frontify is really easy to use!

They do offer a free plan.

Surely it doesn't take you that long to smash together any of the example sites listed here in a solid session on Sublime Text/ etc.... I mean really, what you're wanting is a basic paged website that lists all your elements.

It shouldn't take a decent front end dev more than a couple of hours to put a framework for such a site as that together in raw html. Then just chop and change stylesheets in the future.

Sometimes I just don't see the benefit in framework stacks like what's being suggested, there's a lot of ecosystem bloat to just show a style guide..

It's a bit of a hack, and also not entirely free. But you could use Invision Boards to host brand guidelines. Like for example this example: https://projects.invisionapp.com/boards/UGASQ9BHRFT/

You might look into KSS or Brad Frost's styleguide guide.

There is a node implementation of KSS which works really nicely. KSS Node

and the styleguide guide which is a jekyll solution.

Love Frontify. Wasn't aware their free plan had been phased-out.

Looks like you can fork the carbon design system repo. Curious, is that a viable option for your organization?