Make room for your next chapter#
ChapterOne is a desktop workspace for turning an idea into a book you can review, edit, read, illustrate, narrate, and export. You bring your own AI provider account. Your library lives on your computer; AI requests use your chosen providers.
You do not need to connect every service. Start with one writing provider and a small, text-only book. Add pictures, audio, and a fallback provider when you need them.
Choose your next step#
| I want to… | Start here |
|---|---|
| Install the app for the first time | Install & update |
| Make my first book, step by step | Your first book |
| Connect my account or choose a model | Providers & models |
| Improve a chapter I already wrote | Library & reader |
| Get a file for my editor, e-reader, or printer | Export & Kindle |
| Recover a draft or protect my library | Backups & recovery |
| Fix something that stopped working | Troubleshooting |
The writing journey#
- Describe. Give the book a reader, a purpose, and a direction.
- Plan. Review the chapter outline before committing to a full draft.
- Draft. Follow progress chapter by chapter. Completed chapters are saved.
- Make it yours. Read closely, edit the words, and give specific rewrite directions.
- Share. Export the format your reader or editor actually needs.
The app can generate prose quickly. Your judgment gives the manuscript its accuracy, voice, and reason to exist. Treat the result as a draft to review, especially for nonfiction, children's books, and work you intend to publish.
What you need#
- A supported Mac or Windows computer. See the platform table.
- At least one supported writing provider: Claude Code, Codex, Gemini API, or Grok.
- An internet connection for AI work. Saved books can be read and manually edited without making AI requests.
- Optional: a Gemini API key for Nano Banana images, an ElevenLabs key for audio, or email settings for delivery.
How to use this handbook#
The Get started guides follow a beginner's path. Make your book explains each workflow. Use with confidence covers costs, data, recovery, and common problems. The Reference pages and contributor guides go deeper when you need them.
Use Search the handbook to search all guides locally in your browser. Press / or Ctrl/Cmd + K to open search; press Esc to close it. Every article also has a contents list and a link to its editable source.
Looking for the latest installer? Open the GitHub releases page. Release notes describe the exact artifacts and signing status available for that version. A feature described in the current handbook may require a newer app version.