Retrieve Amazon ASINs from your list of ISBNs (International Standard Book Number). Convert ISBN to ASIN and get data points to help decide which books to source.
The only wholesale scanning tool with bulk ISBN to ASIN conversion.
If you wholesale books on Amazon, RocketSource is your only dedicated option.
Enter your ISBN below to convert it to an ASIN for free. No sign up required!
Need to convert a list of ISBNs to ASINs? Upload your CSV list to Rocket Source today and save hours of manual searching.
More than just ISBN to ASIN conversion, Rocket Source allows you to stay competitive with up-to-date buybox pricing, sales ranks, FBA fees, competitor information and much, much more. The data we provide can give you an edge over your competition, helping you to make smarter sourcing and pricing decisions.
We're not aware of any other wholesale scanning tool that offers bulk ISBN to ASIN conversion.
| Tool | ISBN Support |
|---|---|
| RocketSource | Yes - 50,000/week free |
| Seller Assistant | No |
| Scan Unlimited | No |
| Analyzer.tools | No |
| BuyBotPro | No |
If you wholesale books on Amazon, RocketSource is your only dedicated option. Other tools focus on general merchandise with UPC codes—they weren't built for the book business.
Book wholesale is unique among Amazon business models:
Books use ISBNs, not UPCs. Most wholesale tools don't support ISBN conversion.
Lower per-unit profit, higher volume. You need to analyze thousands of titles to find winners.
Publishers, library sales, textbook distributors—all provide ISBN-based lists.
Amazon itself is a major book seller. Understanding when to compete matters.
Analyze publisher and distributor price lists for profitable titles. Convert ISBNs to ASINs, then check prices, BSR, and competition.
Check college textbook ISBNs against Amazon listings. Find profitable buyback opportunities during semester transitions.
Process thrift store and library sale finds. Batch-convert ISBNs from scanning apps to verify values.
Convert lists of ISBNs from library sale catalogs to identify valuable titles before the sale.
The original 10-digit format, used for books published before January 2007.
The current 13-digit format, required since January 2007. Compatible with EAN-13.
For books, Amazon typically uses one of two ASIN formats:
One title may have multiple ASINs: hardcover, paperback, ebook = different ASINs. Our converter returns the primary match, with options to see all format variations.
Sign up for our 100% free Startup plan today and start converting up to 50,000 ISBNs to ASINs per week.
A: For wholesale-focused tools, yes. Other single-lookup tools exist, but no other wholesale scanning platform offers bulk ISBN to ASIN conversion like RocketSource.
A: Yes. Upload either format (or mixed) and we'll handle the conversion. ISBN-10 was standard before 2007; ISBN-13 is current.
A: Very high for books currently on Amazon. ISBNs are standardized identifiers, and Amazon's book catalog is comprehensive. Match rates typically exceed 95% for in-print titles.
A: Several reasons: book not listed on Amazon (academic, foreign language, very old), invalid ISBN (typo in source data), print-on-demand only (no active inventory listings), or regional edition not available in target marketplace.
A: Yes. Each edition has a unique ISBN. Make sure you have the correct edition's ISBN—older editions have different ISBNs and often different values.
A: Yes. Reverse conversion (ASIN to ISBN) is included with the same 50,000/week limit.
A: Amazon audiobooks (Audible) use different identifiers. The ISBN converter works for physical books and some ebooks with assigned ISBNs.
A: Up to 50,000 per week with a free account. Our paid plans offer higher limits for high-volume book sellers.
Need programmatic access? Use our API to convert thousands of ISBN codes automatically.
cURL
curl -X POST "https://app.rocketsource.io/api/v3/convert" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"marketplace": "US", "ids": ["9780062301253"]}'JavaScript
const response = await fetch(
'https://app.rocketsource.io/api/v3/convert',
{
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
marketplace: 'US',
ids: ['9780062301253']
})
}
);
const data = await response.json();