What is GS1-128 barcode format?

GS1-128 (formerly known as UCC/EAN-128) is a barcode standard using Code 128 that encodes structured data using Application Identifiers (AIs). It's widely used in supply chain for encoding GTINs, batch numbers, expiry dates, and serial numbers.

What are Application Identifiers (AIs)?

Application Identifiers are 2-4 digit prefixes that define the meaning of the data that follows. Common AIs include: (01) GTIN, (10) Batch/Lot, (17) Expiry Date (YYMMDD), (21) Serial Number, (37) Quantity.

How do I format GS1-128 data?

Use parentheses around Application Identifiers for human-readable format: (01)09501101530003(17)260131(10)ABC123. Our generator automatically converts this to the correct barcode format with FNC1 separators.

What's the difference between GS1-128 and Code 128?

GS1-128 is based on Code 128 but includes a mandatory FNC1 character and uses standardized Application Identifiers. This allows scanners to interpret the encoded data structure automatically.

Bulk GS1-128 Generator

Generate supply chain barcodes with Application Identifiers from Excel, CSV, or Google Sheets. Download as PNG or SVG in a ZIP. Free, unlimited, 100% private.

info Common Application Identifiers (AIs)

(01) GTIN-14 (Product ID)

(10) Batch/Lot Number

(17) Expiry Date (YYMMDD)

(21) Serial Number

(37) Quantity

(11) Production Date

Example: (01)09501101530003(17)260131(10)ABC123

1 Input Your Data

Upload Excel / CSV Drag & drop or Click to browse Supports .xlsx, .xls, .csv up to 10MB

One code per line. Use (AI)Data format. Codes are processed automatically.

In Google Sheets: File → Share → Publish to web → select CSV → Publish → copy link

Barcode Data Column (Required)

Label Text Column (Optional)

2 Barcode Type & Output (formats)

Output Configuration

Layout & Dimensions

Height

Bar Width

Padding Left

Padding Right

Spacing & Details

Padding Bottom

Text Gap

1st Digit Gap

Show Code

Export Resolution

GS1 Supply Chain

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