Code 128 Barcode Generator
Free, instant, browser-local Code 128 barcode generation — high-density alphanumeric format for logistics.
About Code 128 Barcodes
Code 128 is the high-density alphanumeric barcode symbology used in logistics, warehousing, and shipping worldwide. Every UPS, FedEx, and USPS tracking label uses Code 128. It encodes all 128 ASCII characters in an extremely compact format — a 20-digit tracking number takes less physical space in Code 128 than a 12-digit UPC.
Our Code 128 generator automatically selects the optimal encoding mode — Code B for alphanumeric data, Code C for numeric pairs (packs two digits per character for maximum density). Download as print-ready 300 DPI PNG or infinitely scalable SVG. All processing stays in your browser — your tracking numbers and shipping codes never leave your device.
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