They're are quite different beasts all together. I can't think of any reason to use reST and Sphinx under any circumstance other than Python projects. Asciidoct

They're are quite different beasts all together. I can't think of any reason to use reST and Sphinx under any circumstance other than Python projects. Asciidoctor.js actually has a site generator these days called Antora (aimed at building docs from multiple git repos) it is still far from complete on features compared to Sphinx. MkDocs looks good for small projects although I probably would just use mdBook if there's a need to write in Markdown for some reason.