Online Barcode Generator

Barcode Generation

Enter a number prefix to generate a standard barcode graphic (check digit is filled in automatically).

Note: The generated graphic is for layout testing and print proofing.Barcodes for products officially on the market must use an allocated valid number.

Prefix Ownership Lookup

Enter the first 3 digits of a barcode to look up the region to which the number range is allocated.

Important: The prefix only indicatesthe allocation region of the number segment，and does not represent the product's origin or place of production. It is very common for Chinese enterprises to apply for local number segments in overseas markets.

Common number segments

GTIN Conversion

The same product may use GTINs of different lengths at different stages; here we perform conversion between higher and lower levels.

Length comparison

Rule: for conversion to a higher level, prepend 0; for conversion to a lower level, the first digit must be 0 before it can be removed.

Barcode Quantity Estimation

Based on the number of brands and product items, make a preliminary judgment of how many manufacturer identification code digits are needed.

Estimation logic explanation

The standard capacity of each manufacturer identification code is approximately 9,999 product items. The estimation is performed as follows:

Required code digits ≈ number of brands × ⌈number of SKUs ÷ 9,999⌉

The actual allocation is affected by coding association rules, product categories, and product line planning. The estimation resultis for preliminary judgment only and does not constitute a quotation or commitment.。