Bulk Barcode Generator
Turn a CSV or number list into a ZIP of barcode images.
What this tool does
Generates a barcode for every row of a CSV or a pasted list, and packs them into a ZIP. Code 128, EAN-13, UPC-A, EAN-8, ITF-14, ITF, Code 39, Codabar, MSI and ISBN are supported, each with the full validation rules of its dedicated generator.
Just paste a list
The simplest input is one number per line with no header at all — paste a column straight out of a spreadsheet and it works. For file names, use a two-column CSV and map the columns.
Every row is validated
Check digits are calculated or verified per row, lengths are enforced, and character sets are checked. A row whose EAN-13 check digit is wrong is reported with the row number and the correct digit, then excluded — so a bad master file gets caught here rather than at a printer or a distribution centre. The error report downloads as CSV.
Where this saves real time
Onboarding a product range, re-labelling a warehouse, generating asset tags, preparing artwork for a print shop. The alternative — pasting numbers into a generator 300 times — is where transposition errors come from.
Then print them
For a sheet of labels rather than individual files, the barcode label maker takes the same list and lays it out on Letter or A4 label stock with cut guides and printer alignment. Use the size calculator first if the X-dimension matters to your trading partner.
Privacy and limits
SKUs, GTINs and batch numbers stay on your device — nothing is uploaded and nothing is stored. Batches are capped at 500 rows, and generation is chunked so the page stays usable and cancellable throughout.
Frequently asked questions
Can I paste a plain list of numbers?
Yes. One value per line with no header is detected and handled.
Are check digits calculated per row?
Yes, using the same rules as the single generators — calculated when you supply the data digits, verified when you supply the full number.
What if some rows are invalid?
They are listed with row numbers and reasons, excluded from the ZIP, and available as an error-report CSV.
Is my product data uploaded?
No. Everything happens in your browser, which matters when the file is an unreleased product range.
Curious how we build and check these codes? Read our methodology.