Code 128 Barcode Generator
Create Code 128, EAN, UPC, Code 39, Data Matrix and other barcodes directly in your browser. Customize sizing, colors, and margins, then export vector SVG or PNG.
Supports all ASCII characters (letters, numbers, punctuation). (All ASCII 0–127 characters)
Standard mode preserves exact GS1/ISO barcode symbology geometry, quiet zones, and height ratios. Recommended for retail packaging and commercial labels.
High-Density Alphanumeric Shipping & Inventory Barcodes
Understanding Code 128 Symbology for Supply Chain Logistics
Code 128 is one of the most popular 1D barcode symbologies in global logistics and inventory management. Designed for high data density, it automatically shifts between three character sets to compact numeric pairs and ASCII text.
Whether you are printing shipping container labels, SKU tags, or internal tracking barcodes, Modifyle generates crisp vector SVG files directly inside your browser with zero server latency.
What Can You Use This Tool For?
Real-world problems solved and intended workflows for this tool.
Warehouse Inventory & Bin Location Labeling
Warehouses tag pallet racking, storage totes, and picking bins with high-density barcodes encoding aisle, rack, and shelf coordinates.
Shipping Container & Carton Labeling
Fulfillment centers require tracking barcodes on master packing cartons to verify contents during dock intake.
Internal IT Asset Tagging
Corporate IT departments tag laptops, monitors, and network switches with serial numbers and asset IDs.
Manufacturing Work-in-Progress (WIP) Tracking
Assembly line traveler sheets track components through welding, painting, and quality control checkpoints.
How It Works in 3 Simple Steps
Input Alphanumeric Data
Type your SKU number or tracking code.
Configure Scale & Margins
Set bar height and quiet zone for printing.
Export Vector SVG
Download vector SVG or PNG file.
- Code 128 is a 1D linear barcode. For extremely long text strings (over 40 characters), consider a 2D Data Matrix or QR code to prevent the linear barcode from becoming excessively wide.
Why choose Modifyle Code 128 Barcode Generator?
Launch PDF, image, and QR tools in 1 click right from your home screen or desktop dock. 100% private, client-side, with full offline capability without internet.