Free KDP tools
Everything you need to publish coloring books on Amazon KDP. No signup required.
KDP specs calculator
Calculate interior dimensions, cover size, spine width, and file requirements for any KDP trim size.
Profit calculator
Estimate your royalties, printing costs, and monthly revenue for KDP coloring books.
AI prompt generator
200+ ready-to-use coloring page prompts organized by niche. Copy and paste into any AI tool.
Book description generator
Generate a professional Amazon product description for your coloring book with HTML formatting.
KDP keyword optimizer
Optimize your 7 backend keyword fields with character counts, duplicate detection, and byte limit tracking.