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Amazon KDP Category Finder

Find the best Amazon categories for your book from 5,264+ browse categories — with AI-powered competitiveness scoring.

Category Finder illustration

Paste your Amazon book description, back cover text, or a summary of what your book is about.

0/5,000 characters

What are Amazon Categories?

Amazon organizes every book into browse categories — a hierarchy of genres and topics that readers use to discover new books. When your book ranks high in a category, it appears on that category's bestseller list and earns a “#1 Bestseller” badge. Choosing the right categories is one of the most impactful things you can do for discoverability.

5,264+ Categories

Deep hierarchy

Up to 10 Per Book

Via Amazon support

Niche = Easier #1

Less competition

How to Use Your Results

  1. 1Paste your book description above and click “Find Categories”
  2. 2Review the suggested categories — results are sorted by relevance to your book
  3. 3Go to kdp.amazon.com, edit your book details, and update your categories
  4. 4For categories not in the KDP dropdown, email kdp-support@amazon.com with the full category path

Frequently Asked Questions

What are Amazon book categories?

Amazon organizes books into a hierarchy of browse categories. When you publish on KDP, you choose categories for your book. Ranking well in a category earns a bestseller badge, which boosts visibility and sales.

How many categories can I choose on KDP?

KDP lets you select up to 3 categories when you publish. You can also contact Amazon support to request up to 10 total categories.

How does the relevance score work?

Our AI analyzes your book description and matches it against 5,264+ Amazon browse categories. Results are ranked by how closely a category matches your book's content, themes, and audience — the most relevant categories appear first.

Can I change my categories after publishing?

Yes. You can update your categories at any time through your KDP bookshelf. Changes typically take effect within 48-72 hours. You can also email Amazon support to request categories that aren't available in the KDP dashboard.

How is this different from BISAC categories?

BISAC codes are the industry-standard classification system used by publishers and bookstores. Amazon browse categories are Amazon-specific and much more granular — there are over 5,000 of them for books alone. This tool focuses on Amazon browse categories.

Do categories affect Amazon search ranking?

Categories affect browse ranking (the bestseller lists), not direct keyword search results. However, ranking well in a category increases your book's visibility, which can lead to more sales.

This tool is powered by Claude. See Anthropic's data usage policy.

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