SmartKDP — KDP calculators and a puzzle book studio
SmartKDP is free KDP calculators and a puzzle book studio for Amazon publishers. Start with royalties, printing cost, or cover size, then build the interior in Book Studio.
Explore all free toolsFree KDP Tools
Practical calculators and generators for Amazon KDP self-publishers — no paywall, and most need no login.
See all 16 free toolsSmartKDP Studios
The deeper tools for the parts of publishing a free calculator can't do alone.
Book Studio
A Canva-style editor for KDP puzzle books — 109 puzzle types, and every puzzle stays a live, editable object after it is generated.
Cover Designer
Design a print-ready full-wrap cover with live spine, bleed, and barcode guides that follow your book's real page count.
Listing Studio
AI-assisted titles, descriptions, keywords, and category suggestions, plus a one-click KDP upload package.
Research Studio
Saved niches, books, and charts from the SmartKDP browser extension — the web half of Save to SmartKDP. Deeper keyword and rank tools land later.
Watch a cover go from page count to print-ready
Spine width, bleed, safe margins and the barcode zone are the four things a general design tool cannot know about your book. This is the Cover Designer doing all four from your trim size and page count, with KDP preflight running before export.
Edit anything after it's generated — every puzzle stays a live, editable object.
Every puzzle verified unique — with a certificate to prove it.
Print-ready means print-ready — KDP preflight built in, before export.
AI disclosure, handled — know exactly what to declare on KDP.
Start with a calculator. Publish with a studio.
Most free tools run without an account; three need a free one. Book Studio picks up where they stop.