bibisco is an open source application for writing novels hosted on github (https://github.com/andreafeccomandi/bibisco).

bibisco is available for windows, linux and mac and you can download it at: http://www.bibisco.com.

With bibisco you can organize chapters and scenes, manage revisions, export novel in pdf or rtf, and write with a fully featured text editor.

You can create a novel structure, define premise, fabula, plots and settings: geographic, temporal and social context.

bibisco provides you various statistics, such as who appears in which scenes, and where the scenes are located, which plots are used in which scenes, and how many words each chapter has.

And, most of all, with bibisco you can know everything about your characters, interviewing them.

Actually, bibisco has 40k downloads, is translated in 8 languages and is one of the 7 cool little open source projects that stood out in 2016 in the yearbook of opensource.com (https://opensource.com/16/12/yearbook-7-cool-little-projects).