# BKLNK Category Lister

> Free Amazon category research and universal book link tool — look up any book's categories by ASIN, analyze top-30 rankings, and create geo-targeted affiliate links.

Source: https://selfpublishingdirectory.com/keywords-metadata/bklnk-category-lister
Website: https://www.bklnk.com
Category: Keywords & Metadata (https://selfpublishingdirectory.com/keywords-metadata)
Pricing: free — $0
AI-powered: no
Tags: free-tool, category-research, amazon-categories, book-links, affiliate, asin-lookup, amazon-kdp
Last verified: 2026-05-14
Best For: Reverse-engineering competitor category placements before requesting your own via KDP support
Data Source: live-amazon-data
Platform: web
Tool Type: rank-tracker

BKLNK is a free utility built for KDP authors who want to understand Amazon's category system without paying for a premium tool. It combines two distinct functions in a single no-account-required tool: universal book links that route readers to their regional Amazon store, and a category research module that reveals where any book is actually classified on Amazon.

## What You Get

- **CATFINDER:** Paste any book's ASIN or ISBN-10 and see every Amazon category it ranks in across .com, .co.uk, .ca, and .de — including "hidden" subcategories that don't appear in a book's product listing.
- **CATALIZE:** From a CATFINDER result, drill into any category to see what the top 30 books in that category use. Useful for reverse-engineering category laddering strategies from bestsellers.
- **Universal Book Links (UBL):** Create a single shareable link that redirects international readers to their local Amazon store automatically (US, UK, Canada, Australia, etc.).
- **Affiliate Code Embedding:** Add your Amazon Associates tag to any UBL so you earn commissions from every sale the link generates.
- **Click Tracking:** Basic analytics on how many clicks your book links receive.

## Who It's For

- **Budget-conscious KDP authors:** Completely free, no subscription, no account needed. Useful for authors researching category strategy before purchasing Publisher Rocket or a similar paid tool.
- **Series authors moving titles into new categories:** CATFINDER helps identify the exact category strings to request via KDP support when you want to land in up to 10 categories.
- **Authors running affiliate programs:** UBLs with embedded associate codes simplify international affiliate link management without a separate service.

**Pricing:** BKLNK is free to use. The creator accepts donations and earns from Amazon affiliate clicks to offset approximately $1,500/year in operating costs. No premium tier exists.

## Strengths

- **No cost, no login:** Access all tools immediately without an account or email sign-up.
- **Cross-marketplace category lookup:** Finds categories on Amazon.com, .co.uk, .ca, and .de — not just the US store.
- **Dual utility:** Combines category research and link creation in one tool, reducing the need for multiple free utilities.

## Limitations

- **No keyword volume data:** BKLNK shows categories but provides no search volume, competition scores, or keyword suggestions. Publisher Rocket and BookBeam do this; BKLNK does not.
- **Community-supported, single developer:** The site runs on donations. The owner considered shutting it down in September 2025 before deciding to keep it active. Continuity is not guaranteed.
- **No sales estimates:** Unlike paid tools, there is no ASIN sales estimator or BSR-to-sales converter.
- **Category research only:** The tool is useful for category laddering but does not help with keyword selection, description writing, or listing optimization.

## Alternatives

Book Category Hunter covers similar ASIN category lookup. Publisher Rocket ($199 one-time) adds keyword research, search volume estimates, and competition scoring alongside category analysis — a better fit for authors ready to invest in discoverability.