A title is an interface before it is literature
A title lives on a cover, but it lives first in a search box and in a scrolling list where a thumb decides whether to stop. That is why genre titles behave the way they do. Romance and fantasy readers browse by signal: a title like "The Duke's Reluctant Bride" tells a reader the genre, the trope, and the tone before they open the sample. Literary fiction works the opposite way: "Beloved," "Atonement," "The Vegetarian" compress a whole book into an image that means nothing until you have read it and everything afterward. This tool knows the difference and returns candidates in three registers rather than one pile.
The descriptive register puts the premise in the title so that a genre reader recognizes it instantly in a list. It is search-friendly and thumbnail-friendly, and it is why so many serial and romance titles read like a sentence. The image register compresses the book's emotional center into two or three words. It pairs well with cover design and word of mouth but is weak in search. The relational register places a relationship in the title, "The X's Y" or "X and Y," and is especially strong for romance, family drama, and literary fiction about two people.
Before you commit, check three things. Search the finalists on Amazon, Goodreads, and the platform you plan to publish on; if a popular book already has that title, readers will confuse the two and search traffic will go to the other book. Say the title aloud and shorten it the way readers and reviewers will; if the abbreviation is awkward or means something else, that is a problem. And picture it on a cover at thumbnail size: titles over about four words break into two lines, and where they break changes the feel.
A generator produces candidates, not answers. More often than a single perfect title appearing in the list, the real title emerges from splicing the front of one candidate to the back of another. The output is numbered so it is easy to copy and compare, and you can ask for more in a specific register. Once the title is chosen, subtitles and taglines can be generated the same way.
The free tool runs three times a day without an account, and nothing you enter is used for training. If you want to keep title candidates alongside the rest of a project, paste the list into the Studio story bible.