For authors naming their book
Book Title Generator: 20 Ideas for Your Book
Get 20 book title ideas built from your story, each with its reason, plus a top three and the checks to run before you choose.
Free to start. No card needed.
How to come up with a good book title
Start inside the book. List what a reader will remember: the object the story turns on, a place, a trade, a line a character keeps saying. For how-to nonfiction, literary agents Jody Rein and Michael Larsen advise a short, visual title and a straightforward subtitle that says what the book will do for readers1. Browse the bestsellers in your exact Amazon category for the lengths and shapes that repeat, then write a long list before you judge any of it.
Test the shortlist the way strangers will meet it, because a title has to make sense before anyone reads the book. In a roundup on Jane Friedman's blog, novelist Joyce Maynard said her working title, The Cork People, had many people thinking of Cork, Ireland2. Say each finalist aloud, shrink it to thumbnail size, and search it on Amazon and Goodreads to see what else comes up. Then ask readers of your genre what they'd expect each one to be about.
Before you commit, check the rules. In the US, titles can't be copyrighted: the Copyright Office lists the title or subtitle of a book among the things it won't register3. A single book's title can't be registered as a trademark either, though the USPTO says a series name may be4. If you self-publish, KDP says the title field should hold only the title as it appears on your cover, with no words like "bestselling" or "free"5.
Ideas
Book title ideas by genre
Each genre has title patterns its readers recognize. Here is what they often look like, with one idea in each shape.
| Genre | What titles often do | An idea in that shape |
|---|---|---|
| Fantasy | Name a place, an object or a power, often as "The ___ of ___" | The Bells of Harrowmere |
| Romance | Hint at the couple, the trope or the setting; rom-coms often play on words | Love at Second Proof |
| Thriller | Stay short and ominous: a person, a place or a threat | Nobody Leaves Ardsay |
| Cozy mystery | Pun on the sleuth's trade, hobby or town | A Sticky End at the Maple Fair |
| Literary fiction | Use a quiet image or a phrase lifted from the text | What the Tide Keeps |
| Science fiction | Name the big idea, the ship or one striking word | The Last Clean Signal |
| Nonfiction | Pair a short hook with a subtitle that names the result | Enough Room: Declutter a Shared Home Without a Fight |
| Memoir | Use a detail from the life, usually with "A Memoir" in the subtitle | Salt on the Porch: A Memoir of My Grandmother's Island |
Ideas written for this page to show each shape. Search any title on Amazon before you use it.
How it works
How does the book title generator work?
Give River whatever you have: a blurb, a synopsis, one line about the book, or the manuscript file itself. It works out the genre, audience, tone and whether the book is part of a series, so you don't have to choose a genre from a menu. From a manuscript, it reads enough to collect the names, places, objects and lines a reader would remember. Mention a working title and River leaves it out of the 20, then says how it compares.
You get 20 titles in four groups: an image from the story, a line from the book, the promise to the reader, and your genre's familiar shapes. Each title comes with one sentence on why it suits your book. A warning flags any that are hard to spell, could pass for another genre, or sit close to a famous title. Above the list, a few lines sum up what titles in your genre usually look like.
After the 20 titles come your top three, each with a note on how it reads on a small cover image. Nonfiction gets a subtitle for each, and a series gets a series name, with a book two title that echoes the first. A short checklist closes the doc: Amazon, Goodreads, copyright, trademark and KDP's title rules. From there, ask for ten more like your favorite, or for back cover copy under the title you pick; the book blurb generator also writes your Amazon description.
How it works
From your blurb to twenty titles
Paste what you have
Paste your blurb or synopsis, describe the book in one line, or drop in your manuscript file.
River reads your book
It picks out the genre, the stakes, and the names, places and objects readers will remember.
Get twenty titles
Four groups of five land in your doc, each title with its reason and any risk noted.
Narrow it down
Ask for more like your favorite, add subtitles, or have River write the blurb that goes with it.
- An image in the storyThe Cracked BellThe object the whole plot turns on, and easy to picture on a cover.
- A line in the bookUntil the River SleepsFrom the guild's oath. Four words that hold the promise and the threat.
What you'll get
Twenty titles for your book, grouped by style, with the reason for each
- 20 titles in four styles, each with the reason it works
- What titles in your genre usually look like
- Your top three, plus the checks to make before you choose
Before and after
Your blurb in. Twenty titles out.
It's a YA fantasy. In Harrowmere, the cathedral bells ring every hour so the river spirits stay asleep. "Ring until the river sleeps," the guild oath goes, and seventeen-year-old Wren Hollis has rung them since her uncle's hands began to shake. When the great bell cracks on the eve of flood season, the guild blames her. The only person who can recast it is the smith her family swore never to speak to, and Wren has nine days before the water wakes. First book of three.
What YA fantasy titles usually look like One to five words. A place, an object or a power, often "The ___ of ___". It promises a world, and someone with everything to lose in it. From an image in the story 1. The Cracked Bell: the object the whole plot turns on. From a line in the book 6. Until the River Sleeps: from the guild's oath in your blurb. Holds the promise and the threat. From the promise 11. Nine Days to the Flood: says the deadline out loud. From the genre's patterns 16. The Bells of Harrowmere: the place name tells readers a whole world is waiting. My top three Series name: The Harrowmere Bells. Book two could echo book one: Until the Bells Fall Silent.
Every title comes from the story you pasted, with its reason beside it.
What lands in your doc
What lands in your title doc
- Twenty titles in four groups: an image, a line from the book, the promise, the genre's pattern
- One sentence under each title on why it fits, and a warning when one is hard to spell
- A short summary of what titles in your genre usually look like, so yours fits the shelf
- Your top three, with how each reads on a small cover, plus subtitles if your book is nonfiction
- A series name, and a title for book two that echoes the first, when you're writing a series
- The checks to make before you choose: Amazon, Goodreads, copyright, trademark and KDP's title rules
Questions authors ask
Common questions
What is a book title generator?
A book title generator, sometimes called a book name generator, suggests titles from a description of your book. River's generator reads your blurb, synopsis or manuscript and builds 20 titles from your own story, each with a reason, so you can judge them yourself. It works for any genre, from fantasy and romance to thrillers, memoir and business books.
How do I name my book with River?
Paste your blurb or synopsis into the box at the top of this page, or describe the book in one line; you can add the manuscript file too. River writes 20 titles with a reason for each, a top three and the checks to make. They land in a doc in your free River workspace, where you can ask for more like your favorite.
How long should a book title be?
There's no set length, but short titles read better on a small cover image. On KDP, title and subtitle together must be 200 characters or less5, a ceiling rather than a target. Nonfiction usually pairs a short title with a subtitle that says what the reader gets. Memoirs, literary agents Jody Rein and Michael Larsen note, are almost always subtitled "A Memoir"1 or "A Memoir of" something.
Can two books have the same title?
Yes. Copyright doesn't cover titles3 in the US, so two books can share one. A series name is different: the USPTO says it may be registered as a trademark4, while a single book's title can't. The practical risk is confusion, so avoid any title already used by a popular book in your genre. Before you build a brand on a series name, ask a trademark lawyer.
Will a publisher change my book title?
Often. Author Isidra Mencos calls a publisher asking for a new title a very common experience2. Heather Young pitched her first novel as White Earth, but her publisher's marketers said it sounded like an alien invasion novel; it came out as The Lost Girls. In your query letter, pitch the one title you think is best1, as agents Jody Rein and Michael Larsen advise, and save the rest.
Can I change my book title after publishing?
Not easily. On KDP, a paperback or hardcover can be retitled within 72 hours of first publication. After that, and for ebooks, KDP says you publish it again as a new book5. Its description must open with "Previously published as," the old title and your name. Only small fixes like typos are made in place, so settle the title before you design the cover or build your launch plan.
Is the book title generator free?
Yes, it is free to start, and no card is needed. Your title ideas open in a River workspace, where you can edit them, share them or ask River to change them. Paid plans add more AI use and access to the most advanced models.
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