Hiveword

Manuskript is an open-source, feature-rich writing tool perfect for writers who like to organize and plan everything before writing. It is customized for novel writers who write fiction.

Scrivener is a word-processing app for writers, novelists, and students that help arrange researched data, notes, and references into manageable sections.

bibisco is an open-source, user-friendly novel writing software that helps writers write their novels and help organize chapters and scenes, manage revisions, and more.

Plottr is a downloadable software that helps you easily arrange (and rearrange) your scenes, plots, and character arcs so you can quickly find your way to the end of your tale.

Plot Factory is an online collaborative story planner that lets writers plan, organize, and write stories & fictional universes.