Novelcrafter

Novelcrafter gives fiction writers a place to organize everything about a book: scenes, chapters, characters, locations and notes. A codex stores your story details, and the AI uses it so suggestions respect what already exists. You can bring your own API keys for the language models you prefer, which keeps costs and privacy in your hands. Features include a plot grid, prompts for rewriting and brainstorming, and an exportable manuscript. Novelcrafter has a free tier and paid plans. It suits writers who like structure and want AI as an assistant, not an author.