Barcode format checks
Non-empty barcode values must be numeric and should match common retail barcode lengths.
fantastic-bronze-lampPrice
mediocre-leather-plate✓ OK
copper-benchBarcode
Shopify barcode validator
Validate product barcodes
before Shopify import
Check Variant Barcode values for non-numeric characters and suspicious lengths. Supports common EAN-8, UPC-A, EAN-13, and ITF-14 barcode lengths.
Drop CSV files here
or click to browse · 15 MB each · 5 files max
No signup requiredFiles deleted after processingNo data stored
Live preview
products.csvReady
HandlePriceStatus
fantastic-bronze-lamp$20.03
mediocre-leather-plate5.45
intelligent-copper-bench44.31
1 auto-fixable · 1 needs reviewAuto-fix →
This is what your results look like after upload
16+
Issue types checked
Auto-fix
Safe errors fixed for you
0 bytes
Data stored on server
Why imports fail
What breaks Shopify CSV imports
The checker finds these automatically and tells you exactly which row and cell to fix.
Non-numeric barcodes
Find spaces, letters, symbols, and spreadsheet formatting mistakes.
Common barcode lengths
Flag values outside 8, 12, 13, or 14 digits.
Safe cleanup
Remove safe formatting characters when a barcode can be normalized.
CSV cell locations
Review exactly which barcode cells need attention.
Variant BarcodeEAN-8UPC-AEAN-13ITF-14Non-numeric values
How it works
Validate Shopify Variant Barcode values in bulk
The most common barcode problems in Shopify CSVs come from Excel, not the products themselves. Excel auto-formats long numeric barcodes into scientific notation (e.g. 5.01234E+12), adds decimal points, or strips leading zeros from EAN-13 codes starting with 0. This validator catches those spreadsheet-introduced mistakes and flags barcodes with unusual lengths before they reach Shopify.
Auto-fix where safe
Safe barcode cleanup can be included in the clean CSV output.
Auto-fix preview
$20,03→20.03
FANTASTIC LAMP!→fantastic-lamp
“Greatâ€→"Great"
Useful for supplier feeds
Validate barcodes before handing product files to a merchant or import specialist.
B2 · Variant Price · error
Currency symbol in price field
E4 · Handle · error
Invalid handle format
Questions and answers
Frequently asked questions
Common questions about Shopify barcode validation.
Excel changed my barcodes to numbers like 5.01234E+12. Can this fix them?
That is scientific notation from Excel auto-formatting long numeric values. The checker flags those cells. To prevent it in future, format the barcode column as Text in Excel before pasting values, or open the CSV in Google Sheets instead.
My EAN-13 barcode starts with 0 but Shopify shows it shorter. Why?
Excel strips leading zeros from numeric columns. The barcode should be 13 digits but Excel saved it as 12. Always store barcodes in a Text-formatted column to preserve leading zeros.
Does it validate check digits?
The checker focuses on numeric format and standard length (8, 12, 13, or 14 digits). Check digit validation is not included because many internal or supplier codes use non-standard formats intentionally.
Are blank barcodes errors?
No. Blank barcodes are allowed because many Shopify catalogs do not use barcodes for every variant.