A book description generator that writes 3 openings from your pitch and checks each one against KDP's own rules.
Describe your book, get 3 Amazon descriptions that open differently, and check each against KDP's rules.
Your book
Descriptions
Type what the book is about first.
Your description
KDP's checks
Write or paste a description to check it.
What you type stays in this browser. The rules are KDP's own; the Read more cut was measured on an Amazon book page on September 26, 2026.
This free book description generator writes 3 Amazon descriptions from your book's pitch.
Each one opens differently, and each is checked against KDP's rules before you use it. Then you see it on Amazon's page, cut where Amazon cuts it with Read more.
Here's what KDP asks of a description, what it won't accept, and how to open one.
What is a book description?
A book description is the text on your Amazon page that sells the book: what it's about, who it's for, and why to read it now.
On KDP it's also called the blurb, and it's limited to 4,000 characters.
What KDP asks for
KDP's own advice fits in 3 lines:
- Simple. Describe the main plot, theme or idea only, in about 150 words.
- Compelling. Write a first sentence that draws readers in, and make the genre clear.
- Professional. No spelling or grammar mistakes.
What KDP won't accept
KDP rejects descriptions that contain any of these:
- Links, email addresses or phone numbers
- Reviews, quotes or testimonials
- Requests for reviews
- Prices, deals or availability
- Dates and time-limited offers
- Emojis
- Keyword or tag lists
Reviews and quotes have their own place: the Editorial Reviews section, which you fill in through Author Central.
A publisher's page can look different. Fourth Wing's opens with awards and review quotes:
- The description, up to Read more: about 280 pixels on a laptop, all spent on praise before the story starts.
On KDP, your first lines stay free for the hook, and the generator writes 3 of them.
3 ways to open
The generator writes 3 descriptions, each with a different opening:
- A question the reader is already asking themselves.
- A bold claim the book goes on to prove.
- A scene or a story that drops the reader into the book.
Pick the one that sounds most like your book, and edit it in the formatter below it.
How to use the book description generator
Your pitch is kept in your browser, and the title and outline generators use it too.
Book Description Generator FAQs
Questions about book descriptions? Here's what to know.
A book description is the text on a book's Amazon page that sells it: what it's about, who it's for and why to read it.
KDP limits it to 4,000 characters.
KDP suggests about 150 words for a book description, in easy-to-scan sentences, with a first sentence that draws readers in.
A KDP book description can't include links, emails, phone numbers, reviews, quotes, testimonials, review requests, prices, dates, emojis or keyword lists.
Reviews and quotes go in the Editorial Reviews section, which authors fill in through Amazon Author Central, not in the book description.
The book description generator is told never to invent facts, numbers, awards or credentials.
Proof goes in only as you type it, and every result is yours to edit.
Yes, the book description generator is free, with no sign-up.
Asking your own AI is free, and Generate here has a daily limit.
The book description generator is for self-published authors writing or rewriting their Amazon description.
The Amazon book description formatter cleans and checks a description you already have, and the book title generator works from the same pitch.
See all my free tools.
Navid Moazzez
AI business strategist & AI OS builder
Navid Moazzez helps creators and founders master AI and build their own AI Operating System (AI OS) to automate their business and life.
Navid.me is reader-supported. When you buy through links on this site, I may earn an affiliate commission. Learn more.
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