Generate a run of EAN-13 or UPC-A codes from a start and end number
For teams launching new product lines or allocating internal SKU ranges — enter a start GTIN, set an end or count, and Zebralines fills in every code with correct GS1 check digits automatically. Available on Trial and paid plans.
< 50ms
to render
0 bytes
uploaded
GS1
check digits
The sequence generator is built for the moment you know your first GTIN and how many codes you need — but you do not want to type them out or wrestle with spreadsheet formulas. Product launches, internal SKU blocks, and test batches all start with a numeric range. Zebralines expands that range instantly, computes a valid GS1 check digit for every EAN-13 or UPC-A value, and pushes the rows straight into bulk preview. No copy-paste errors, no manual Luhn math, no rejected labels at the scanner. Open bulk mode, set your start and end, and you are ready to export.
Sequential GTINs are tedious — and one wrong digit breaks the run
Typing hundreds of sequential barcodes by hand in a spreadsheet is slow, error-prone, and impossible to audit when a retailer rejects a single code mid-run.
Manually calculating GS1 check digits with a formula looks easy until row 247 — one transposed digit invalidates the entire block and you only find out at print time.
Copy-paste patterns in Excel break silently: incrementing the wrong column or skipping a row creates gaps that scanners catch but your spreadsheet does not.
Test batches and pilot runs need small sequential sets fast; desktop label tools treat every code as a one-off instead of a range you can expand in seconds.
Zebralines sequence generator does the math, builds every row, and sends you straight to bulk preview — ready to validate and export.
Define a range by start/end or by count
Enter your first GTIN and either an ending number or how many codes you need. Zebralines expands the full sequence instantly — no spreadsheet formulas, no copy-paste down a column, no manual incrementing. Change the start value and the end recalculates automatically so you always know how many labels you are about to generate before you commit.
Automatic GS1 check-digit calculation on every code
Each value in the sequence gets a valid check digit computed via the GS1 Luhn algorithm. EAN-13 and UPC-A symbologies are fully supported — the generator understands GTIN length rules for each format and refuses to build an invalid run. You see the full expanded list before it hits bulk preview, so there are no surprises at export time.
Push to bulk preview with quantity per code
Replace your current bulk rows or append the sequence to an existing import. Set a quantity per code to generate multiple copies of each label in one export run — useful when every SKU needs two shelf labels or a backup strip. From bulk preview you get the same validation, export formats, and print options as any other bulk job.
Three steps. No jargon.
Enter your start number
Type the first EAN-13 or UPC-A value in your range. Use 12 digits for EAN-13 or 11 for UPC-A if you want Zebralines to append the check digit.
Set end or count
Choose an ending GTIN or specify how many sequential codes you need. The panel shows the total count live so you can confirm the range before generating.
Push to bulk and export
Rows appear in bulk preview instantly. Validate the run, adjust quantities, and export PNG, SVG, PDF, or ZIP — same pipeline as a spreadsheet import.
Built for teams like yours
Product launch manager
Allocate a block of 200 new EAN-13 codes for a seasonal product line in one click. Set start and count, push to bulk, and hand the ZIP to your packaging vendor the same day specs are approved.
Works well with this
Common questions
EAN-13 and UPC-A. The generator handles GS1 check-digit math automatically for both symbologies.
Generate a run of EAN-13 or UPC-A codes from a start and end number
Available on Trial and paid plans. Start a free trial in the workspace.