Retrieve Amazon ASINs in bulk from your list of UPCs (Universal Product Codes). Convert your UPC to ASIN and get data points to help decide which products to source.
Also convert EANs, ISBNs, or ASINs to EANs
Enter your UPC below to convert it to an ASIN for free. No sign up required!
Need to convert a list of UPCs to ASINs? Upload your CSV list to Rocket Source today and save hours of manual searching.
More than just UPC 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.
Most UPC to ASIN converters limit you to single lookups or charge per conversion. RocketSource gives you bulk conversion power at no cost.
| Tool | Free Conversion Limit |
|---|---|
| RocketSource | 50,000/week |
| Seller Assistant | Single lookups |
| Other converters | 100-500/day typical |
Why so generous? Wholesale sellers process thousands of products. A 100/day limit doesn't cut it. We built the tool we wished existed when analyzing supplier lists.
ASINs are Amazon's unique identification number for products (Amazon Standard Identification Number). It is a 10-character alphanumeric (so just numbers and letters from A to Z) code that is assigned to each and every product listed on Amazon.
If you are a wholesaler, then you need to know the ASIN(s) for the products you sell. This allows you to list the product you have for sale, ultimately, make money! However, finding these ASINs, particularly if you have a lot of products, can be time consuming. That's where a bulk ASIN lookup tool, like Rocket Source comes in. You can simply upload a list of your UPC codes and get back a list of ASINs.
Accuracy and reliability are important factors in finding a good lookup tool. But, you need more than just that. You need a tool that moves as fast as you do and can process your supplier files quickly, helping you to find profitable products to sell before your competitors.
Compatibility with different types of product codes (such as EANs or ISBNs) is also crucial, depending on the types of products you sell.
Convert supplier price lists from UPC to ASIN for profitability analysis. Upload your distributor's catalog and identify which products are worth buying.
Check if products found on retail websites are listed on Amazon. Verify UPCs before placing orders.
Scan clearance items at stores, then batch-convert UPCs to check Amazon listings and prices.
Process product research lists efficiently for clients. The bulk upload saves hours compared to one-at-a-time lookups.
A UPC (Universal Product Code) is a 12-digit barcode used to identify retail products in North America. It's the number printed beneath the barcode on product packaging.
An ASIN (Amazon Standard Identification Number) is Amazon's proprietary 10-character alphanumeric product identifier.
Amazon maintains a database linking UPCs to ASINs. When you submit a UPC, we query this relationship and return the corresponding ASIN(s). One UPC can match multiple ASINs (variations, bundles, different sellers). We return the primary/parent ASIN by default.
EAN (European Article Number) - 13 digits, used internationally. ISBN (International Standard Book Number) - for books. GTIN (Global Trade Item Number) - umbrella term including UPC, EAN, ISBN.
Sign up for our 100% free Startup plan today and start converting up to 50,000 UPCs to ASINs per week.
A: With a free RocketSource account, you can convert up to 50,000 UPCs per week. Our Scale plan supports lists of hundreds of thousands of products without limits. This is the most generous free tier in the industry.
A: Yes. 50,000 conversions per week, no credit card required, no time limit. The free tier is permanent, not a trial. We offer it because most users who experience RocketSource's value eventually upgrade for full profitability analysis.
A: Our database covers the vast majority of products sold on Amazon. Match rates typically exceed 90% for legitimate retail UPCs. Some UPCs (store brands, very new products, international items) may not have Amazon matches.
A: CSV (comma-separated values), XLSX (Excel), and TXT (plain text, one UPC per line). You can also copy/paste directly into the interface.
A: All of them! We support all Amazon marketplaces including US, CA, MX, UK, DE, FR, IT, ES, NL, SE, PL, AU, JP, SG, AE, SA, IN, TR, EG, and BR. Select your target marketplace when converting.
A: Yes! Your free account includes reverse conversion (ASIN to UPC/EAN) with the same 50,000/week limit.
A: The basic conversion returns the matched ASIN. With a full scan, you get 90+ data points including pricing, BSR, competition, fees, and profitability calculations.
A: If a UPC has no Amazon match, it means the product isn't currently listed on Amazon with that identifier. This is useful information—it tells you the product may not be available on the platform, or may be listed under a different identifier.
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Need programmatic access? Use our API to convert thousands of UPC 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": ["190199246850"]}'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: ['190199246850']
})
}
);
const data = await response.json();