Free KDP Keyword Research Tool

KDP gives you seven keyword fields when you set up a book, and each field can hold a short phrase rather than a single word. You can also update them later. The tool gives you more than seven suggestions so you can choose the strongest combination for your listing.

Competition reflects how many books already target a keyword and how hard it is to rank for. Low-competition keywords are easier to surface for, especially for a new book, while high-competition keywords have more search traffic but are crowded. A good listing mixes both.

Yes, where it reads naturally. Amazon weighs your title, subtitle, and description in search, so working in a few important keywords helps discoverability. Never stuff them in a way that hurts readability, since the listing still has to convince a human to buy.

Pick categories that genuinely match your book and where it has a realistic chance of ranking. A well-targeted category can earn a bestseller badge that drives more sales. The tool suggests categories based on your topic so you start from relevant options.

Review them if a book is underperforming or if search trends in your niche shift. There is no need to change keywords constantly, but revisiting them every few months, or after a launch settles, can recover visibility you are missing.