Free Online Barcode & QR Code Generator

Q: What is the difference between 1D and 2D barcodes?

1D barcodes are traditional line-based codes for numeric data. 2D codes like QR can store much more data including URLs and contact information.

Q: Why should I use SVG format?

SVG is resolution-independent, ensuring the barcode remains perfectly sharp and scannable at any size.

generate industrial-grade barcodes and qr codes instantly. secure client-side output.

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How to Generate Barcodes and QR Codes Online

Our free barcode engine provides an industrial-grade interface for generating 1D and 2D visual identifiers. Whether you need a standard QR Code for a website, an EAN-13 for retail, or a Code 128 for logistics, our engine produces high-precision results. Everything is rendered client-side using the powerful BWIP-JS library, allowing you to download high-resolution PNG or scalable vector (SVG) files without any data ever being uploaded to a server.

Supported Formats

QR Codes (for URLs, text, and contact info)
Code 128 & Code 39 (Standard industrial use)
EAN-13 & EAN-8 (Global retail standards)
UPC-A & UPC-E (North American retail)
Data Matrix & PDF417 (High-density 2D codes)

Professional Features

High-resolution PNG export (4x scale)
Scalable Vector (SVG) support for designers
Custom alphanumeric labels below barcodes
Automatic checksum calculation for UPC/EAN
Privacy-first: No tracking or data logging

Frequently Asked Questions

What is the difference between 1D and 2D barcodes?

1D barcodes (like Code 128 or EAN) consist of vertical lines and typically store limited numeric or alphanumeric data. 2D codes (like QR or Data Matrix) store data both horizontally and vertically, allowing for much larger data capacities, such as full URLs or encrypted strings.

Why should I use SVG format?

SVG (Scalable Vector Graphics) is resolution-independent. This means you can scale the barcode to any size—from a tiny sticker to a massive billboard—without losing sharpness or scan accuracy.