Novelcrafter is an AI-powered writing platform designed to support authors throughout the entire storytelling process, from brainstorming and character building to drafting, reviewing, and exporting their work. The platform offers a dedicated “Codex” wiki where writers can catalogue characters, locations, lore, and world‐building elements, ensuring consistency and easy reference. It supports structured planning modes, acts, chapters, scenes, and integrates seamlessly with the writing interface so authors can switch fluidly between planning and prose. AI tools are optional and fully customisable: authors can connect their own API keys (OpenAI, Claude, local LLMs) and set up tailored prompts, or work manually without AI support. Novelcrafter includes a distraction-free write mode, revision history, import/export of documents (Word, Markdown, HTML), and mobile compatibility for writing on the go.