Numbers
EAN-13 Barcode Number Generator
Used by developers, writers, and creators worldwide.
An EAN-13 barcode number generator solves a specific, recurring problem: you need structurally valid 13-digit barcodes for dev and test work, but hardcoding real product codes creates collisions and legal grey areas. Every number produced here includes a correctly computed check digit, so it passes validation in any compliant scanner, POS system, or inventory API without touching a live GS1 registry. Set the count to generate anywhere from one to hundreds of barcodes in a single run. The optional 2–3 digit country prefix lets you target a specific GS1 range — 00–09 for US/Canada, 30–37 for France, 40–44 for Germany — useful when your routing logic or supplier simulation depends on region-specific codes.
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How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Set the Count field to the number of EAN-13 barcodes you need in one batch.
- Optionally enter a 2–3 digit GS1 country prefix to restrict output to a specific region.
- Click Generate to produce the list of validated EAN-13 numbers.
- Copy the output list and paste it into your spreadsheet, test fixture, or database seed file.
Use Cases
- •Seeding a Postgres products table with 200 unique, valid EAN-13 codes for staging
- •Populating a Shopify or WooCommerce demo store with realistic barcode data
- •Writing Jest or Pytest fixtures for a barcode validation function that checks check-digit logic
- •Simulating French supplier inventory (prefix 30–37) in a warehouse management system
- •Load-testing a barcode lookup REST endpoint in Postman with a large batch of valid codes
Tips
- →Use prefix '50' for UK-style barcodes and '400' for German codes to test region-specific routing logic in your app.
- →When seeding a database, generate in batches of 50–100 and import with a UNIQUE constraint to catch any rare duplicates automatically.
- →A generated EAN-13 starting with '0' is structurally identical to a UPC-A code — drop the leading zero if your system requires 12-digit UPC input.
- →Pair generated barcodes with a barcode rendering library (e.g. JsBarcode or python-barcode) to create scannable label images for physical testing.
- →If your scanner rejects a code, check that it's reading the full 13 digits — some scanners default to UPC-A mode and strip leading zeros.
FAQ
how is the ean-13 check digit calculated
Multiply each of the first 12 digits alternately by 1 and 3, sum the results, then subtract from the next multiple of 10 — that remainder is the check digit. Every barcode this generator produces has that calculation already applied, so it will pass structural validation in any compliant system.
can i use these generated ean-13 barcodes on real products i sell
No. These numbers are not registered with GS1, so retailers and distributors will reject them for live trade, and a generated code could collide with an existing product. For commercial use, buy a GS1 company prefix from your national GS1 organisation — that gives you a legally assigned block of numbers.
what's the difference between ean-13 and upc-a barcodes
UPC-A is a 12-digit format common in the US and Canada; EAN-13 is its 13-digit superset, effectively a UPC-A with a leading zero prepended. Most modern scanners read both. If you specifically need UPC-A codes, take any generated EAN-13 starting with 0 and drop that leading digit.