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Idea in, book out: a Mac app that pitches, drafts, checks and designs a book, and builds KDP-ready files.

Short description (50 words)

Author Magic is a Mac app for authors. Start from an idea and it pitches the book and writes a first draft, or write every word yourself. It works with Claude, OpenAI, Gemini and more on your own keys. A story bible keeps the facts straight, a cover studio designs the wrap, and every KDP file is checked.

Facts

• Platform: macOS 12 or later, Apple Silicon
• Output: KDP paperback interior PDF, full cover wrap PDF, ebook cover (1600 × 2560 px), EPUB (passes epubcheck 5.2.1 with 0 errors)
• Write it with AI: idea, shape, pitch, then a first draft written in the background
• 10 cover templates and a layer-based cover studio; 14 open-licensed book typefaces; 17 KDP paperback trim sizes
• Authorship dial: I write every word / I write, AI expands / I brain-dump, AI shapes / AI writes from my brief, set per chapter
• AI: Claude, OpenAI, Gemini, OpenRouter, Ollama, LM Studio and any OpenAI-compatible service, through the author's own keys
• Local-first: books are ordinary folders on the author's computer
• Imports .docx, Markdown and plain text
• Price: free to try with no time limit (the pitch and chapter 1 of every book); $149 one-time licence for every book; $49 for a single book, credited toward the licence for 60 days. AI is billed separately by the author's provider.

Usage notes

• Sample books shown in screenshots (The Lantern Keepers, Salt & Iron, The Quiet Garden, Tidelines) are fictional, made in Author Magic for demonstration.
• Write the name as "Author Magic" in running text. Don't redraw or recolour the logo.