Numbers

EAN-13 Barcode Number Generator

The EAN-13 barcode number generator creates valid, mathematically correct 13-digit barcodes for development and testing purposes. EAN-13 is the global retail standard for product identification, recognized by point-of-sale systems, inventory platforms, and logistics software on every continent. Each number generated here includes a properly computed check digit, meaning it will pass validation logic in any compliant barcode scanner or retail application. Developers building e-commerce platforms, warehouse management systems, or product catalog APIs constantly need realistic barcode data that won't trigger validation errors. Hardcoding fake barcodes or reusing real ones from existing products introduces bugs and legal grey areas. Generated EAN-13 numbers sidestep both problems by producing structurally valid codes that don't correspond to registered GS1 products. The optional country prefix input lets you narrow the output to barcodes that match a specific GS1 prefix range. This is useful when your system applies region-based routing logic, or when you need to simulate a supplier from a particular country. French products, for example, carry prefixes in the 30–37 range, while US and Canadian products use 00–09. You can generate anywhere from one to hundreds of EAN-13 numbers in a single run, making it practical for bulk database seeding, load testing a barcode scanner endpoint, or populating a demo storefront with realistic product data. The output is ready to copy directly into a spreadsheet, SQL insert statement, or test fixture file.

How to Use

  1. Set the Count field to the number of EAN-13 barcodes you need in one batch.
  2. Optionally enter a 2–3 digit GS1 country prefix to restrict output to a specific region.
  3. Click Generate to produce the list of validated EAN-13 numbers.
  4. Copy the output list and paste it into your spreadsheet, test fixture, or database seed file.

Use Cases

  • •Seeding a product catalog database with realistic barcode data
  • •Testing barcode scanner hardware against valid EAN-13 input
  • •Populating a demo e-commerce storefront with fake product codes
  • •Validating barcode parsing logic in a warehouse management system
  • •Generating French or German region-specific barcodes for supplier simulations
  • •Creating test fixtures for a POS system integration test suite
  • •Load-testing a barcode lookup API with large batches of valid codes
  • •Filling a spreadsheet template for retail product onboarding workflows

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

What is an EAN-13 barcode number?

EAN-13 is a 13-digit international product identification standard managed by GS1. The first 2–3 digits identify the GS1 member organisation (roughly the country of registration), the middle digits identify the company and product, and the final digit is a check digit calculated from the preceding 12. It's the barcode you see on virtually every retail product outside North America, though it's also used widely in the US and Canada.

How is the EAN-13 check digit calculated?

Sum the digits at odd positions (1, 3, 5, 7, 9, 11) multiplied by 1, then sum the digits at even positions (2, 4, 6, 8, 10, 12) multiplied by 3. Add both totals together, then subtract the result from the next multiple of 10. The difference is the check digit. If the total is already a multiple of 10, the check digit is 0.

Can I use these generated barcodes on real products I sell?

No. These barcodes are randomly generated and not registered with GS1, which means retailers and distributors won't accept them for real trade. There's also a chance a generated number collides with a registered product's barcode. For commercial use, purchase a GS1 company prefix from your national GS1 organisation, which gives you a block of numbers you can legally assign to products.

What country prefix should I use for UK barcodes?

UK-registered products use the GS1 prefix range 50. Enter '50' in the Country Prefix field to generate barcodes that start with 50, matching codes issued by GS1 UK. Similarly, use 30–37 for France, 40–44 for Germany, 489 for Hong Kong, and 00–09 for USA/Canada.

Will these barcodes pass validation in my application?

Yes, as long as your validation checks structure and check digit correctness. Every number produced by this generator has a correctly computed check digit and is exactly 13 digits long. They will fail only if your system cross-references a live GS1 product database — which most internal dev and test environments do not.

What's the difference between EAN-13 and UPC-A?

UPC-A is a 12-digit format used primarily in the US and Canada. EAN-13 is its 13-digit superset — a UPC-A code is effectively an EAN-13 with a leading zero prepended. Most modern barcode scanners read both formats. If you need UPC-A codes, you can take any generated EAN-13 that starts with 0 and drop the leading digit.

How many EAN-13 numbers can I generate at once?

Set the Count field to however many you need before clicking generate. For typical uses like database seeding or test fixtures, generating 50–200 at a time is common. Copy the output list directly into a CSV, paste it into a SQL VALUES clause, or import it into a spreadsheet for further processing.

Do generated barcodes ever repeat or collide with each other?

The generator draws from a very large random space (up to 10^12 combinations), so collisions within a single batch are statistically negligible for typical use. For large-scale load testing where uniqueness is critical, generate in smaller batches and deduplicate in your import script as a precaution.