InkBinder is a browser book formatter for self-publishers. Import Word (DOCX), Markdown or plain text. Format by hand or with Claude or another compatible AI, then review the result and stay in control. Export watermarked EPUB, paperback and hardcover files free, as often as you like, and pay once for clean publishing files. Print-ready PDFs for KDP paperback and hardcover. One Book $39, Forever $199.