From raw idea to formatted DOCX — market research, titles, outline, full manuscript, description, and cover. One pipeline, one subscription, complete control.
Free tier included. No credit card required.
50K+
Words per book
Under 2 hrs
Idea to manuscript
$19
Starting price/mo
No writing experience needed. Follow the pipeline and publish.
Enter your topic, audience, and preferred writing tone.
AI creates 5 Amazon-optimized title and subtitle combos.
Full chapter-by-chapter structure with section summaries.
AI writes each chapter matching your voice. Edit inline.
Download a KDP-ready DOCX with title page, TOC, and formatting.
Built by a KDP publisher who got tired of stitching together 10 different tools.
Every metric below is generated by CoWriter Ink. No fluff, just results.
50,000+
Words per book generated
13
Chapters per outline on average
8
AI editing agents available
< 2 hrs
Average time from idea to DOCX
Built by a real KDP publisher
CoWriter Ink was created by an active Amazon KDP publisher with multiple books in print. Every feature exists because we needed it ourselves. This is not a tool built by developers who have never published a book — it is built from the publishing trenches.
Choosing a topic is a guessing game
Rely on intuition and scattered research to decide what readers might want.
Production costs add up quickly
Writers, editors, designers, and formatting can make every book expensive. It could costs $1,000+ before a single sale.
Months can disappear into one book
Research, writing, revisions, editing, and formatting take time to coordinate.
AI tools lose coherence
Switching between chats can break context and weaken consistency after 5,000 words.
Research lives in too many places
Jump between browsers, documents, notes, and AI tools to keep everything together.
Revisions create more work
Changing one section can lead to inconsistencies across the rest of the book.
Data-driven decisions
Amazon market research shows what sells. Pick a niche backed by real data.
Everything in one subscription
Bring the essential book-creation workflow into one platform. From $19/mo only.
Idea to manuscript in hours
Full 50K-word book drafted in under 2 hours. Export and publish the same day.
Keep your voice consistent
Author Persona keeps tone locked. Context stacking maintains coherence at 50K+ words.
Keep research and writing connected
Bring your research, ideas, and manuscript into one organized workspace.
Edit without losing the big picture
Refine individual sections while maintaining consistency across the manuscript.
See how the numbers stack up across three approaches.
| Going Solo with AI | Hiring Professionals | CoWriter Ink | |
|---|---|---|---|
| Manuscript | $20–200/mo + hours of effort | $500–$1,500 per book | Built in · Full manuscript |
| Editing | Manual self-editing | $200–$500 separate hire | Built in · 8 AI editing agents |
| Book Cover | Basic image generators | $100–$400 per cover | Built in · AI cover designer |
| Description | Generic, not optimized | $50–$150 per listing | Built in · Amazon-optimized |
| Total Cost | $20–200/mo + your time | $1,000–$2,500+ per book | From $19/mo |
| Time to Publish | Weeks of assembly | 2–6 months | Under 2 hours |
Scale your catalog without scaling your costs. Generate multiple books per month with consistent quality. Test niches fast with data-driven research.
Turn your expertise into a published book. Consultants, coaches, doctors, and professionals can build authority with a book that sounds like them, not a robot.
Coming soon: character tracking, world-building, beat sheets, and series continuity. The full fiction pipeline from concept to published novel.
The complete toolkit. One honest price.
Perfect for your first book
For serious book publishers
For volume publishing teams
All plans include a free tier to start. No credit card required. Cancel anytime.
ChatGPT is a general-purpose chatbot. CoWriter Ink is a purpose-built book creation pipeline. Every step is designed specifically for book publishing. You get consistent voice across 50,000+ words, structured outlines, Amazon-optimized titles, and KDP-ready formatting. No copy-pasting between prompts, no losing context, no manual assembly.
CoWriter Ink uses an Author Persona system that captures your unique voice, including your tone, warmth, authority, and energy level. Every chapter is generated using this persona, so the output reads consistently like you wrote it. You can also edit any section directly in the built-in editor.
A full 50,000-word nonfiction book can be drafted in under 2 hours, from idea to downloadable DOCX. That includes market research, title generation, outline, full manuscript, and book description. Editing and polishing adds more time, but the heavy lifting is done fast.
No. CoWriter Ink guides you through every step. You provide the topic, audience, and tone. The AI handles the structure, research, and writing. First-time authors and experienced publishers both use the same pipeline.
CoWriter Ink is optimized for nonfiction: business, self-help, how-to, health, finance, history, and education. Fiction support with character tracking and world-building is coming soon.
The DOCX export is formatted for KDP, but the same file works for IngramSpark, Draft2Digital, Apple Books, and any platform that accepts Word documents.
Absolutely. Every chapter opens in a full rich text editor. You can edit any word, sentence, or paragraph. You can also regenerate individual chapters without affecting others. The AI assists, you control.
Your projects and all generated content remain accessible. You can still view and export everything. You just cannot create new books or generate new content until you resubscribe.
Stop spending months and thousands of dollars. Start your first book today, completely free.
Start Your First Book FreeNo credit card required. Free tier included.