Stylo is an open source online text editor designed to allow researchers in the humanities and social sciences to write their scientific papers in a straightforward way while retaining full control over format and encoding. The source-text, encoded in Markdown, can then be converted by Pandoc into a variety of formats. The documents can also be viewed online through a permanent URL. Finally, Stylo features document sharing functions that make collaborative editing easier. Stylo is undoubtedly an interesting and innovative tool in the field of collaborative publishing.