How to generate product barcode online free?

Visit sizefix.in/barcode-generator.html. Select barcode format (Code 128, EAN-13, UPC), enter your numeric or alphanumeric SKU code, and download clean vector SVG or PNG.

How to create product barcodes online for free?

Select barcode type at sizefix.in/barcode-generator.html, enter code data, and download high-resolution PNG barcodes.

Can I print these barcodes for retail packaging?

Yes! The exported SVG and PNG files maintain crisp 300+ DPI vector sharpness suitable for commercial barcode scanners and printers.

SizeFix Barcode Generator — Code 128, EAN-13, QR Code Maker Online Free

Gen-Z Aesthetic QR Studio Offline Engine

QR Content Type

Target Website / URL

UPI ID / VPA

Payee Name

Amount (₹ Optional)

Phone Number (With Country Code)

Pre-filled Message (Optional)

Wi-Fi Network Name (SSID)

Password

Encryption

Instagram Username

Text Content

Aesthetic Themes (Cyber, Nature, Gen-Z) Cyber Neon

Pattern / Dot Shape

Corner Eye Style

Center Badge (Face / Nature / Cyber / Brands)

Custom Logo

100% Scannable Offline

Barcode Parameters

Barcode Data / Code

Barcode Format

Barcode Height

Display Text Underneath

100% Compliant Barcode

Code 128 & EAN-13

UPC-A & Code 39

Multi-Symbology Support (Code 128, EAN-13 & UPC)

Whether you need universal Code 128 for warehouse shipping boxes, EAN-13 / UPC-A for retail product packaging, or Code 39 for inventory tags, SizeFix supports all international 1D symbologies with automatic checksum calculation.

Full Code 128 (alphanumeric logistics & shipping labels)
EAN-13 & UPC-A standard retail grocery formats
Automatic Modulo checksum calculation prevents scanning errors

Vector SVG

300 DPI Thermal PNG

Infinite-Resolution Vector SVG & 300 DPI PNG

Blurry barcodes fail at the checkout counter. Download your barcodes in infinite-resolution vector SVG format for commercial printing plates, or high-density 300 DPI PNG files ready for Zebra and Brother barcode printers.

Infinite-resolution SVG vectors for packaging design
High-density 300 DPI PNG for thermal sticky label rolls
Razor-sharp bar edges ensure instant laser scanner reads

Height & Width

Quiet Zone Margins

Custom Bar Dimensions, Quiet Zones & Captions

Fit barcodes onto tiny cosmetic bottles or large cardboard cartons. Customize bar height, line thickness, quiet zone margins, font size, and human-readable text labels with live instant preview.

Adjustable bar height and bar width multipliers
Standard GS1 compliant quiet zone margin protection
Toggle human-readable text numbers above or below bars

In-RAM Only

Zero SKU Tracking

100% In-Browser Privacy (Zero SKU Tracking)

Your proprietary product SKUs, internal tracking serials, and inventory codes are confidential. SizeFix generates all linear barcodes locally in your browser memory without sending data to remote web servers.

Zero server tracking — your SKU numbers stay on your machine
Safe for internal corporate logistics and unreleased products
Unlimited barcode generation with zero watermarks or subscription barriers

Retail & Logistics Symbology

Free Online Barcode Generator (Code 128, EAN-13, UPC & Code 39)

Generating standard barcodes for retail inventory, library labeling, warehouse logistics, and packaging stickers requires compliance with international GS1 symbology standards. The SizeFix Barcode Generator creates high-density linear barcodes (including Code 128, EAN-13, UPC-A, and Code 39) with customizable bar width, height, and human-readable text labels, exporting sharp vector SVG and high-resolution PNG images.

Step-by-Step Instructions

Select Barcode Standard

Choose Code 128 (general alphanumeric), EAN-13 (13-digit retail), or Code 39.

Enter Data String

Type product SKU, tracking number, or item code to generate the barcode bars.

Download Barcode

Download your scannable barcode as SVG or PNG ready for sticky label printing.

Standard Barcode Symbology Specifications

Symbology Type	Supported Characters	Checksum Verification	Primary Industry Application
Code 128	Full 128 ASCII character set	Mandatory Modulo 103 checksum	Logistics, shipping labels, packaging, ID badges
EAN-13	13 Numeric digits only	Modulo 10 check digit	Global retail point-of-sale product packaging
UPC-A	12 Numeric digits only	Modulo 10 check digit	North American retail merchandise
Code 39	Alphanumeric (A-Z, 0-9, limited symbols)	Optional checksum	Industrial manufacturing, automotive, defence

Frequently Asked Questions (FAQ)

Which barcode format should I use for custom warehouse inventory?

Code 128 is the recommended universal standard for inventory and warehousing because it encodes both numbers and letters compactly with high scan reliability.

Can ordinary smartphone camera apps scan these barcodes?

Yes! All standard handheld barcode laser scanners and mobile camera scanning apps can decode these standard compliant barcodes.

Why does an EAN-13 code require exactly 12 or 13 digits?

EAN-13 is an international GS1 standard where the 13th digit is a mathematical checksum calculated from the preceding 12 digits.

100% Client-Side Confidential Security

Processed entirely in your device's web browser RAM. Your personal files and documents never leave your machine.

Zero Server Upload