Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Toyhouse - Toyhouse is a platform that allows users to build up characters foe their games and stories.
Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
World Anvil - World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
Novlr - Online word processor and organizer for novel writing.
Refsheet.net - Refsheet.