Free Online Barcode Generator
Create standard linear barcodes for retail products, warehouse inventory, and shipping logistics. Download sharp PNG images or infinite-resolution vector SVG files with zero watermarks.
Configure Barcode Format
What It Does
The QRFixer Barcode Generator creates standard one-dimensional (1D) linear barcodes directly in your web browser. It encodes numeric and alphanumeric product data into machine-readable parallel bars according to international standards, including Code 128 for warehouse inventory, EAN-13 and UPC-A for commercial retail checkout, Code 39 for automotive component tracking, and ITF-14 for corrugated shipping cartons.
How It Works — Step-by-Step Guide
Generate packaging-ready barcodes in four simple steps without downloading third-party software.
Choose Symbology Standard
Select Code 128 for general logistics, EAN-13 for global retail products, or UPC-A for North American retail checkout systems.
Enter Product Data or Numbers
Type your SKU, serial number, or GTIN digits. The generator automatically validates digit lengths and calculates standard Modulo-10 checksums in real time.
Adjust Height, Thickness & Colors
Fine-tune the vertical bar height and line thickness to suit your product labels. Maintain strict high-contrast dark bars on light backgrounds to ensure instant laser reader compatibility.
Download Infinite-Resolution SVG
Export vector SVG files for commercial prepress and packaging plate engraving. Copy PNG images directly to your clipboard for quick office labeling documents.
Who It Is For
Designed to support packaging engineers, fulfillment centers, and small retail brands with reliable barcode generation:
Retail Goods Manufacturers
CPG brands generate authorized EAN-13 and UPC-A barcodes to print on bottles, food boxes, and apparel tags for point-of-sale checkout scanners.
Warehouse & Logistics Teams
Fulfillment managers create Code 128 barcode labels for inventory storage bins, carton tracking numbers, and pick-and-pack fulfillment routes.
Industrial Shipping Operators
Wholesale distributors generate ITF-14 barcodes with thick outer bearer bars designed specifically to read accurately on coarse corrugated cardboard boxes.
Packaging & Graphic Designers
Designers export clean, uncompressed vector SVG files to integrate razor-sharp barcode elements directly into Adobe Illustrator or CorelDraw layouts.
Frequently Asked Questions
Answers to common questions regarding barcode symbology, print calibration, and commercial compliance:
Do I need to register barcode numbers to sell products in retail stores?
Yes. If you sell commercial goods through supermarket point-of-sale registers or international marketplaces, you must obtain authentic GS1-registered GTIN numbers. For internal warehouse tracking, employee badges, or library systems, you can generate Code 128 barcodes freely without registration.
What is the difference between Code 128 and EAN-13?
Code 128 is an alphanumeric standard that can encode letters, numbers, and symbols with high data density, making it ideal for shipping and logistics. EAN-13 encodes exactly 12 or 13 numeric digits and is used exclusively for global retail checkout systems.
Why is the Quiet Zone margin important when printing barcodes?
The Quiet Zone is the blank, unprinted white space flanking both sides of the barcode lines. Optical laser scanners require at least 0.25 inches (6 mm) of clean margin to establish a baseline reflectance level before reading the dark bars.
Can I invert barcode colors to have white bars on a dark background?
No. Traditional laser scanners use red laser diodes that measure the light bouncing off reflective white gaps between non-reflective dark bars. Printing white bars on a black background causes laser scanners to fail completely.
Why should commercial packaging designers export SVG instead of PNG?
Vector SVG files store mathematical lines rather than raster pixels. This ensures the bar line widths and edges remain razor-sharp at any printer resolution (300 DPI, 600 DPI, or commercial plates) without pixel blur or ink bleed issues.
Are downloaded barcode graphics free for commercial use?
Yes. All barcode graphics generated by QRFixer are 100% free for commercial packaging, inventory labels, and marketing materials with zero licensing fees or watermarks.
🛡️ Data Privacy Note
Barcode generation runs entirely inside your browser memory using client-side JavaScript. Your product SKUs, inventory numbers, and serial strings are never transmitted to, viewed by, or stored on our servers.