Improve your book sales
on Amazon
The All-in-One Toolset to Increase Your Book Sales on Amazon.

The Most Powerful Tools in the Space
Everything you need for success on Amazon KDP
Niche Research
Discover dozens of high-performing niches in seconds. Filter through
- millions of books on Amazon.
- Real-time BSR analysis
- Sales and royalty data
Book Tracking
Track any book on Amazon. Monitor rankings, revenue, and reviews.
- Competitor monitoring
- Automatic alerts
Keyword Research
Get detailed analysis of keyword demand and competition directly from Amazon.
- Direct Amazon data
- Listing optimization
Trusted by 30,000+ Authors
★★★★★
Reviews from real paying users
★★★★★
“Ninja Publisher provides unique data that other tools don’t have!
Marco R.
Self-Publishing Author
★★★★★
“If you want to take your publishing business to the next level, I highly recommend trying Ninja Publisher.”
Laura G.
Bestselling Author
★★★★★
“Ninja Publisher is a complete keyword research tool for KDP publishers. I use it every day!”
Giovanni A.
Professional Publisher
200M+
Books Database
45,000+
Categories analysed
30,000+
Authors Helped
8
Supported Markets
Accessible through all devices
Use NinjaPublisher on your computer, tablet or phone!

Unlock Access to Best Sellers
Choose a paid plan to access the full list of best sellers and discover winning strategies
Top-Performing Books
Access the books with the best sales performance on Amazon KDP
In-Depth Analysis
Study BSR, reviews, pricing, and strategies of the most successful books
Find Profitable Niches
Identify patterns and niches that generate consistent sales
Winning Strategies
Learn from the strategies used by books that dominate the Amazon rankings
Start Today
Sign up for Ninja Publisher and access the most powerful toolset for self-publishing authors.
It’s risk-free with our 7-day money-back guarantee.
