Identifier Converter (Bulk)
Use the bulk Identifier Converter inside Sourcer to convert large lists of ASINs, EANs, UPCs or ISBNs in one go. It works like the free converter on our website, but with bulk processing, file upload and CSV export.
What you can do
Convert identifiers in bulk: Paste dozens or hundreds of codes and convert them all with one click.
Upload CSV/Excel files: Drag & drop a file with your identifiers instead of pasting them manually.
Mix different identifier types: The tool automatically detects whether each code is ASIN, EAN, UPC or ISBN.
Export the results: Download a CSV file with all matched identifiers and product details.
Input options
At the top of the page you find two input areas:
Text area: Paste your list of identifiers (one per line).
Click Convert to start the conversion.
Click Clear to empty the text box and reset the results.
Drag & Drop CSV or Excel:
Drop a file directly into the upload box, or click to browse your computer.
SellerMagnet reads the identifiers from your file and sends them for conversion automatically.
You can combine both methods: paste some codes and also upload a file in the same session.
Conversion results
After running a conversion, the Conversion Results table shows, for each processed item:
Input: The original code you provided.
Detected Type: How SellerMagnet classified the identifier (ASIN, EAN, UPC, ISBN).
ASIN: The matched ASIN, when available.
EAN: The matched EAN, when available.
Title (Editable): Product title returned by Amazon. You can adjust or shorten it directly in this column before exporting.
Status: A green checkmark indicates that the conversion was successful.
In the top-right corner of the table you see a short summary, for example “Completed. 25 items processed.”
To download your work, use:
Export CSV: Exports the entire table (including edited titles) as a CSV file you can reuse in your own sheets, tools or listings.
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