StoryMaster AI is a book-writing and publishing platform designed to help authors turn ideas into finished books. Users can discuss a concept with the AI, define the intended audience and length, and develop a manuscript through guided prompts. The platform supports a wide range of formats, including fiction, children’s books, educational content, memoirs, guides, business books, and other nonfiction.

Its writing and editing tools can generate chapters, revise passages, refine tone and grammar, and keep each page editable, while features such as a character builder help writers shape their stories. Authors can also create or upload cover designs and generate illustrations. For preparing work for publication, StoryMaster offers book formatting and exports in PDF, DOCX, EPUB, and KDP-ready formats, with publishing tools available on selected plans.

Subscription tiers cater to first-time writers, active self-publishers, professional authors, and teams, with varying word allowances, design resources, support, and collaboration features. The site also provides writing guides, tutorials, templates, publishing education, author stories, and blog articles