Styleguide Generators, it doesn't matter if they automatically generate the final output or not. As long as it's a solution to create a styleguide, then it's a valid entry.
- Rizzo
- Fabricator
- pattern lab
- styledocco
- topdoc
- KSS
- Hologram
- livingstyleguide
- Another list of styleguides generators
And I can pretty much stop collecting them, due this awesome website: http://www.styleguides.io