Book Blurb Generator

Turn your story or nonfiction pitch into two back-cover blurbs, a KDP-ready Amazon description in HTML, a one-line pitch, and tagline variants. Free AI drafts, no sign-up.

How it works

1. Choose fiction or nonfiction and your genre.
2. Fill in the short prompts: who, where, what goes wrong, what they want, and what it costs. Use present tense.
3. Generate, compare the A and B versions, copy the Amazon HTML, and edit the draft in your own voice.

Questions

Does this use AI?

Yes. An AI model drafts the copy from the details you type, and it is told not to invent plot points, credentials, reviews or numbers. If the AI is busy or the free daily AI allowance is used up, the tool still works: it builds the drafts from a template instead and labels them that way. Either way, treat the result as a first draft to edit in your own voice.

What HTML does the Amazon description use?

Only simple tags KDP accepts in the description field, such as <b>, <i>, <p>, <br> and lists. Paste the HTML into KDP and check the preview.

How long should a blurb be?

Most back-cover fiction blurbs run about 100 to 200 words. The Amazon description can be longer (KDP allows up to 4,000 characters), but the first two lines matter most because they show before 'Read more'.

Can I test more than one version?

Yes. The tool gives an A version that leads with stakes and a B version that leads with character, so you can use one on the back cover and try the other on Amazon or in ads.

Is my text saved?

We do not store your inputs. To write the AI draft, your details are sent to our AI provider (OpenAI) for that one request.