Free Book Title Generator (+ Guide)
A book title generator that learns from 869 New York Times bestsellers and tests every title against KDP's rules.
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by Navid Moazzez·Updated Sept 30, 2026·3 min read·Navid.me is reader-supported. When you buy through links on this site, I may earn an affiliate commission. Learn more.Embed this tool on your site
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This free book title generator gives you title ideas shaped like your genre's bestsellers.
It measured how 869 New York Times bestsellers are titled, genre by genre: how many words, how often they start with "The", and how many carry a subtitle. Then it tests any title you like against those numbers, against KDP's title rules, and against the books that already have it.
Here's what the bestsellers show, the rules KDP enforces, and how to test a title before you commit.
TL;DRKey takeaways
What is a book title generator?
A book title generator suggests titles for your book from what it's about, who it's for, and its genre.
Most generators mix random words. This one is told how your genre's bestsellers are actually titled, and every idea it gives you can be tested on the spot.
How bestsellers are titled, by genre
Fiction titles are short. In most fiction genres, the middle half of bestsellers use 2 or 3 words:
- Title length (middle half)
- 2 to 3 words
- Start with "The"
- 31%
- Title length (middle half)
- 2 to 3 words
- Start with "The"
- 29%
- Title length (middle half)
- 2 to 4 words
- Start with "The"
- 20%
- Title length (middle half)
- 2 to 3 words
- Start with "The"
- 21%
- Title length (middle half)
- 3 to 5 words
- Start with "The"
- 47%
Mystery and crime titles carry a number more than most (23%), often a series count.
Nonfiction titles are just as short, and the subtitle does the explaining:
- With a subtitle
- 86%
- Subtitle length (middle half)
- 6 to 10 words
- With a subtitle
- 84%
- Subtitle length (middle half)
- 5 to 10 words
- With a subtitle
- 71%
- Subtitle length (middle half)
- 6 to 10 words
- With a subtitle
- 57%
- Subtitle length (middle half)
- 5 to 9 words
All 14 history bestsellers in the set have one, at 5 to 9 words.
KDP's title rules
KDP says the title field should hold only your book's actual title, as it appears on the cover. Its guidelines don't allow:
- Sales rank words, like "bestselling"
- Promotion words, like "free"
- Repeated generic words, like "notebook" or "journal"
- Unauthorized references to other books, authors or trademarks
- HTML tags, or a title that's only punctuation
Your title and subtitle together must be fewer than 200 characters. The tester checks all of these except the references, which only you can judge.
Can you use a title that's taken?
Usually, yes. The US Copyright Office puts it plainly: "Copyright does not protect names, titles, slogans, or short phrases." Some can be protected as trademarks, like a series name.
A title another book has is still harder to find, so the tester looks it up on Open Library, and checks whether the .com has a DNS record.
Your title at search size
On Amazon's search page, shoppers see your cover and your title before anything else:
- The cover at search size. The title on it has to read at this size.
- The title and subtitle, cut to 3 lines in this grid.
The tester draws your title on a cover at 3 sizes, so you can check it before you commit.
How to use the book title generator
Your pitch is kept in your browser, and the subtitle, description and outline generators use it too.
Who is the book title generator for?
It's for authors naming a book:
- Book subtitle generator – authors writing the line under the title
- Book description generator – anyone writing the pitch next
- Headline analyzer – authors testing a title's words
- Book outline generator – writers who haven't started yet
The rest of my tools are on the free tools page.
Book Title Generator FAQs
Questions about book titles? Here's what to know.
A book title generator suggests titles for a book from what it's about, who it's for and its genre.
This one is shaped by how New York Times bestsellers in that genre are titled.
Most New York Times bestsellers use 2 to 4 words in the title.
Thrillers and romance sit at 2 or 3 words, and nonfiction titles are as short, with a subtitle of about 6 to 10 words.
Yes.
The US Copyright Office says copyright does not protect titles, though some, like a series name, can be protected as trademarks.
A different title is still easier for readers to find.
KDP doesn't allow sales rank words like bestselling, promotion words like free, repeated generic words like notebook, HTML, or unauthorized references to other books, authors or trademarks.
Most nonfiction bestsellers have one: 86% of business, 71% of self-help and 57% of memoir bestsellers in the set carry a subtitle.
Yes, the book title generator is free, with no sign-up.
Asking your own AI is free, and Generate here has a daily limit.
The book subtitle generator writes the line under your title, and the book description generator works from the same pitch.
See all my free tools.
I did. I'm Navid Moazzez, and I made the book title generator as one of my free tools on navid.me.
More about me.
Navid Moazzez
AI business strategist
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. Read the affiliate disclaimer.
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