Free 1D Linear Barcode Generator for Retail & Logistics
Generate standardized 1D linear barcodes directly inside your browser. Whether preparing retail product packaging with EAN-13 or UPC-A, labeling shipping cartons with Code 128, or printing 21-label self-adhesive A4 sticker sheets, PDFriend computes checksums and vector paths entirely on the client side with zero tracking.
Barcode Symbology Comparison
Selecting the right symbology depends on your target industry, scanner infrastructure, and character set requirements:
| Symbology | Character Set | Length | Primary Industry |
|---|---|---|---|
| Code 128 | Full 128 ASCII (letters, numbers, symbols) | Variable | Logistics, shipping cartons, asset management |
| EAN-13 | Numeric only | 13 digits (12 + checksum) | Global retail point-of-sale (Europe, India, Asia) |
| UPC-A | Numeric only | 12 digits (11 + checksum) | North American retail (USA & Canada) |
| Code 39 | Uppercase letters, numbers, punctuation | Variable | Automotive, military, government ID tags |
| ITF-14 | Numeric only | 14 digits | Corrugated master shipping boxes & pallets |
How to Generate and Print Barcode Labels in 4 Steps
- Select Symbology: Pick Code 128 for warehouse inventory, or EAN-13/UPC-A for retail distribution.
- Enter Identification Data: Type your product SKU, serial number, or GTIN. For EAN-13, provide 12 digits; the modulo 10 checksum digit is calculated automatically.
- Calibrate Width & Height: Use the sliders to adjust optical bar width and vertical height to match the dimensions of your packaging label.
- Download or Print Sheet: Save as high-resolution PNG, scale-free vector SVG, or print a ready-to-peel 3x7 A4 sticker sheet (21 labels).
Frequently Asked Questions
What is the difference between EAN-13 and UPC-A?
UPC-A is standard in the United States and Canada (12 digits), while EAN-13 is standard across Europe, India, and internationally (13 digits). Adding a leading zero to any 12-digit UPC creates a globally compatible 13-digit EAN.
Why should I download SVG instead of PNG for printing?
Scalable Vector Graphics (SVG) define lines mathematically rather than with fixed pixels. When printed at commercial resolutions (300 to 1200 DPI), SVG guarantees crisp edges without blur, ensuring first-pass scanner read rates.
Can I print standard self-adhesive sticker labels directly?
Yes. Clicking "Print A4 Sticker Sheet (PDF)" compiles a 3-column by 7-row layout (21 labels per page) formatted for standard peel-and-stick A4 label paper.
Explore QR & Barcode Tools
Fast, private in-browser utilities for all your tagging and scanning needs:
Barcode Scanner
Read retail and logistics barcodes with your camera or uploaded image file.
QR Code Generator
Design custom 2D QR codes with logos, frames, and high-res vector export.
QR Code Scanner
Decode Wi-Fi, URL, and contact QR codes with webcam or gallery photos.