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Create Code 128 barcodes with custom colors & sizing.
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Barcode Generator delivers exactly what its name promises, create code 128 barcodes with custom colors & sizing, fast and free. Because it belongs to ToolsMonk's business tools collection, the whole workflow happens on a single page instead of being spread across separate apps or websites.
Typical jobs it handles include creating barcodes for products, inventory, or labels, generating a barcode for a sku or item number, and printing barcodes for stock management. The same page works on desktop, tablet, and mobile, so it is equally quick for a single urgent task and for work you repeat every week.
Barcode Generator is designed for people who want a practical, privacy-friendly workflow with instant results inside the larger ToolsMonk library.
| Price | Free, no signup, no paywall, no watermark |
|---|---|
| Works on | Any modern browser: desktop, tablet, and mobile |
| Processing | In your browser, files never leave your device |
| Account required | None |
| Category | Business Tools |
Enter the data to encode (e.g. a product number)
Choose the barcode format
Generate and preview the barcode
Download the image for printing or use
Generates barcodes from your data
Supports common barcode formats
Download a print-ready barcode image
Runs in your browser, your data is never uploaded
Clean output with no watermark
Free, with no signup and no limit on calculations
Creating barcodes for products, inventory, or labels
Generating a barcode for a SKU or item number
Printing barcodes for stock management
Producing barcodes for packaging or assets
At its core, Barcode Generator does one thing well, create code 128 barcodes with custom colors & sizing, with instant, accurate results. There is no software to install and no account to create; the tool is ready the moment the page loads.
All processing runs locally in your browser, so your files and data never leave your device. The interface adapts to any modern browser and screen size, so the Business Tools workflow you rely on at a desk is the same one you get on a tablet or phone.
Barcode Generator creates scannable barcodes from your data in common formats, with a print-ready image download, for products, inventory, labels, and asset tracking.
It helps to know when a barcode (versus a QR code) is right: a traditional 1D barcode encodes a short number read by laser scanners, perfect for product SKUs and inventory, whereas a QR code holds richer data like URLs and is read by cameras. For item numbers and stock, the barcode is the tool; for links and text, the QR Code Generator fits better.
Format and registration matter for retail. EAN/UPC barcodes used in shops require numbers registered through GS1 to be valid commercially, while internal uses (your own inventory, labels, assets) can encode any code with formats like Code 128 or Code 39. So the image is free to generate here; a registered retail number is a separate step.
For reliable scanning, print at adequate size with strong black-on-white contrast and a clear margin, and test-scan before a big run. Generation runs in your browser with nothing uploaded and no watermark. Pair it with the QR Code Generator and other ToolsMonk business tools.
Use Code 128/39 for internal inventory codes; EAN/UPC (registered via GS1) for retail products
Print with good contrast and a clear margin, and always test-scan before a print run
Need to encode a URL or richer data? Use the QR Code Generator instead
Common questions about this tool, its workflow, and what to expect before you use it.
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Preview
Create Code 128 barcodes with custom colors & sizing.
Use Barcode Generator free →Live tool (iframe)
Readers use the real, working tool right on your page, with a small credit line underneath.
Embed card (HTML)