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KDP keyword box checker

Type your title, subtitle and the seven keyword boxes from your KDP book page. You see which boxes break KDP's own keyword rules, with KDP's sentence next to each flag. Nothing you type leaves your browser.

KDP's help pages do not print this number, so check the box in your account. I start it at 50. Change it if your box says something else.

Every flag uses KDP's own words, checked on 14-Nov-26: Make Your Book More Discoverable with Keywords and Metadata Guidelines for Books. KDP says "This list is not exhaustive", so a box with no flag is not a promise that KDP will accept it.

This tool does not show how many people search a phrase. For that you need a tool with search data, such as Publisher Rocket (an affiliate link, so I earn a small commission if you buy).

More free tools: the self-publishing cost calculator, the book page count calculator, the KDP book description formatter, the KDP cover size and spine width calculator, the ISBN barcode generator, the KDP royalty and print cost calculator and the book sales calculator. See all the free tools.

Keywords sorted? Here is the rest.

The free checklist is the 12 steps I follow for every book, from choosing a topic to setting up the book's marketing.

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