About Code-128
Code 128 is the most versatile linear barcode: it encodes the full ASCII character set (letters, digits, punctuation) at high density with automatic switching between character sets A, B and C. It is the standard in logistics, shipping, warehousing, tickets and patient wristbands and the basis of GS1-128.
Data format
Any ASCII text; the check character is computed automatically. \F inserts FNC1.
Example: ABC-abc-1234
Linear Codes
One-dimensional barcodes consist of parallel bars and spaces of varying width. They are the industry standard for logistics, warehousing, inventory, tickets and product marking, readable by any laser or camera scanner.
Frequently asked questions about Code-128
Is the Code-128 generator really free?
Yes. You can create as many Code-128 barcodes as you like and download them as PNG or SVG – no registration, no watermark, commercial use included.
What resolution does the Code-128 barcode have?
PNG files are generated with adjustable module width and up to 600 DPI. For print we recommend the lossless SVG vector format which scales without any quality loss.
Is my data stored?
No. The barcode content is only processed to render the image and is not stored. We only count anonymously how often a barcode type is used.
Can I embed Code-128 barcodes in my website or software?
Yes. Every barcode has a stable image URL (see “Embed HTML”) which you can use in websites, label software or spreadsheets.