Barcode Generator
Generate a Code 128 barcode from text or numbers.
How to use
Enter your values and pick a mode if the tool offers one.
Click calculate — results appear instantly, computed in your browser.
Copy the result or save the tool to your favorites.
Frequently asked questions
Code 128, which encodes letters and numbers.
Yes, right-click the barcode image to save it.
Standard letters and digits; avoid unusual symbols.
The barcode is rendered from your input via an image service.
Inventory labels, products, tickets, and similar.
About the Barcode Generator
This tool generates a Code 128 barcode from any text or numbers you enter. Code 128 is a high-density, widely supported barcode standard used across retail, logistics, and inventory systems, and the generated barcode can be downloaded and printed for labels and tracking.
What a barcode is
A barcode encodes data as a pattern of parallel bars and spaces of varying widths that a scanner reads optically. The scanner measures the widths and translates the pattern back into the original characters. Barcodes exist because machines read patterns far faster and more reliably than they read printed digits, eliminating the errors and slowness of manual data entry. A checkout scan that takes a fraction of a second would be a slow, mistake-prone keyboard entry without them.
Why Code 128
There are many barcode standards, each suited to different needs. Code 128 is among the most versatile for general business use because it can encode the full set of standard characters, including letters, digits, and symbols, and packs them densely so the barcode stays compact. This makes it the common choice for shipping labels, internal inventory codes, and product tracking, as opposed to the fixed-format codes used specifically for retail point-of-sale, such as the UPC and EAN symbols on consumer packaging.
Common uses
Businesses use barcodes to track inventory as items move through a warehouse, to label products and assets, to manage shipping and parcels, and to speed up any process that involves looking something up by an identifier. Generating your own barcodes lets a small business build a simple, scannable tracking system without specialised equipment, since the codes can be printed on ordinary labels and read by inexpensive scanners or even phone apps.
Tips for reliable scanning
Print barcodes at a sufficient size and high contrast, ideally black on white, so scanners read them cleanly. Avoid scaling a barcode in a way that distorts its proportions, as this can make it unreadable. Leave clear space around the code, and always test a printed sample with your actual scanner before producing labels in bulk. Keep the encoded text reasonably short, since longer data produces a wider, denser code.
Privacy and related tools
The barcode is rendered from your input through an image service, so avoid encoding confidential data into codes you will share publicly. For two-dimensional codes that hold more data and scan with any phone camera, see the QR Code Generator. The barcode generates instantly from your text.