🚀 KDP Radar — Full access to all tools.
$19/moFounder rate locked for life · Cancel anytime
KDPRadarby RGH
● DEMO MODE
—
ASIN Lookup — Single Book Analysis
Keyword / Niche Analysis
Book Finder — Filter & Discover
#100,000
1
500
3.5★
$30
36mo
Finds niches with low reviews and steady sales — ideal for journals, notebooks, and planners. Great for new publishers entering a market.
Books selling well but not yet dominated by established titles — your window to enter before competition locks in.
Published in the last 12 months and already ranking — confirms the niche is active right now, not a trend from years ago.
▶ Filter by Amazon Categories
Niche Finder — Opportunity Scoring
Quick search:
Category Finder — Discover Where to Rank
Enter a keyword to find which Amazon subcategories competitors are ranked in — sorted by competition level. Easiest to rank in appear first.
Quick search:
Reverse Keywords — Uncover Competitor Keywords
💡 Best results: add 2–3 competing books from the same niche for focused keyword overlap.
KDP Royalty Calculator
Royalty Rate
70%
Your Royalty Per Sale
$6.93
Monthly Revenue Estimate
30 sales/mo
$207.90
Saved Research
No saved items yet. Research a book and click Save to add it here.
🔒
Your Free Trial Has Ended
Subscribe to continue using KDP Radar — keyword research, niche analysis, book finder, and more.
$19/mo · Beta price locked for life
Cancel anytime. Instant access after payment.
📖 KDP Radar — How to Use Each Tool
KDP Radar pulls live Amazon data to help you find profitable niches, validate keywords, and analyze competition — before you write a single word.
📖
ASIN Lookup
Single book deep-dive
Enter any Amazon book ASIN to get a full analysis: price, BSR, reviews, estimated daily sales, and monthly revenue.
💡 Best use: Found a book doing well in a niche? Paste its ASIN here to see exactly how much it's making. Use this before entering any niche to validate demand.
📍 Where to find an ASIN: Go to any Amazon book page → look in the URL after /dp/ (e.g. amazon.com/dp/B09XBC6VLX) or scroll down to "Product Details".
🔍
Keyword Research
Search volume + competition scoring
Type a keyword to see related search suggestions, estimated search volume, and competition level. Suggestions are pulled directly from Amazon autocomplete.
💡 Best use: Start broad ("journal") then go specific ("gratitude journal for women"). Long-tail keywords (3+ words) almost always have lower competition and are easier to rank for as a new publisher.
🎯 What to look for: Keywords with steady suggestions but fewer than 500 reviews in the top 10 results = opportunity.
🎯
Book Finder
Filter Amazon books by your criteria
Search Amazon books with advanced filters: BSR range, review count, price, rating, and publication date. Great for finding hidden gems in a niche.
💡 Best use: Use the preset buttons for instant niche scans — "Low Content Goldmine" finds notebooks and journals with low reviews and steady sales. "New Releases" shows what's working right now.
🎯 What to look for: Books with BSR under 100,000 and fewer than 200 reviews — those are beatable with a better cover and title.
📡
Niche Finder
Opportunity score for any keyword
Enter a niche keyword and get an opportunity score from 0–100, average reviews, price, estimated sales, and a ranked list of the top competing books.
💡 Score guide:
🟢 70–100 High Opportunity — Low competition, good demand. Strong candidate.
🟡 45–69 Moderate — Winnable with a differentiated cover and strong title.
🔴 0–44 Competitive — Dominated by established titles. Find a tighter sub-niche.
🎯 Pro tip: A score of 84 with avg reviews of 344 means the niche has demand but hasn't been locked up yet — that's your window.
🔄
Reverse Keywords
Uncover keywords driving competitor sales
Enter 2–3 competitor ASINs to extract the keywords their books rank for. See search volume, competition score, and opportunity rating for each keyword.
💡 Best use: Find the top 3 books in your target niche, paste their ASINs here, and discover the exact keywords driving their traffic. Then click "Research" on any keyword to validate it instantly.
🌎 Spanish/multilingual books: Select your book's language in the language dropdown — even if your book is listed on amazon.com, selecting Spanish returns Spanish keyword suggestions.
💰
Royalty Calculator
Estimate earnings before you publish
Calculate your exact KDP royalty for eBook, Paperback, or Hardcover based on price, page count, and marketplace. Supports all major Amazon marketplaces.
💡 Best use: Before pricing a new book, run it through the calculator for all three formats. Paperbacks under 100 pages at $5.99 often earn less than $1 — knowing this upfront saves you from a pricing mistake.
📌 Note: KDP pays 70% royalty on eBooks priced $2.99–$9.99, and 35% outside that range. Paperback royalties depend on printing cost which scales with page count.
🔖
Saved Research
Your research clipboard
Save books, niches, and ASINs from any tool using the 🔖 Save button. Export everything to CSV for use in spreadsheets.
💡 Best use: Build a shortlist of 10–15 niche candidates across multiple research sessions, then export to CSV and score them side-by-side before committing to writing.
📌 Note: Saved research is stored in your browser (localStorage). It persists across sessions on the same device but won't sync across devices.