Technical Guide

Complete QR Code Types Guide

Complete guide to QR code types: static vs dynamic QR, Micro QR, Data Matrix, Aztec, PDF417, UPC/EAN. Learn use-cases, pros/cons, and best practices.

Static vs Dynamic
2D & 1D Barcodes
Best Practices

Static vs Dynamic QR Codes

Understanding the fundamental differences between static and dynamic QR codes is crucial for choosing the right solution for your needs.

Permanent

Static QR Codes

Content is encoded directly into the QR code and cannot be changed after generation.

Permanent encoding

URL, Wi-Fi, vCard data embedded directly

No platform dependency

Works offline, no internet required

Perfect for evergreen content

Business cards, contact info, fixed URLs

Best for: Simple, permanent use cases
Editable

Dynamic QR Codes

Content is stored on a platform and can be updated without changing the QR code itself.

Editable content

Update destination without reprinting

Analytics & tracking

Scan counts, locations, devices, timing

Advanced features

A/B testing, expiration, access controls

Best for: Marketing campaigns & analytics

Quick Decision Guide

Choose Static When:

  • Content never changes (business cards, contact info)
  • No internet dependency required
  • Simple, one-time use cases

Choose Dynamic When:

  • Content may need updates (marketing campaigns)
  • Analytics and tracking needed
  • A/B testing or campaign management

QR Code Variants (ISO/IEC Standards)

Explore the different QR code formats and their specific use cases in modern applications.

QR Code Model 2

The modern standard with 40 sizes and up to ~3KB capacity. Most commercial generators use this format.

Standard

Micro QR

Ultra-compact for tight spaces (M1–M4). Lower capacity but perfect for small labels and electronics.

Compact

rMQR (Rectangular)

Rectangular footprint for narrow packages while maintaining QR-like scanning speed and reliability.

Rectangular

iQR

High-capacity variant supporting both square and rectangular shapes. Ideal for industrial applications.

High Capacity

Frame/SQRC

Branded frames and secure variants for access control. Commonly used with logos and custom branding.

Branded

Model 1 (Legacy)

Older specification superseded by Model 2. Rarely used in modern applications but still supported.

Legacy

Other 2D Barcodes

Beyond QR codes, these 2D barcode formats serve specialized purposes in various industries.

Data Matrix (ECC 200)

Extremely compact and robust. Dominant in electronics, medical devices (UDI), and manufacturing applications.

Industrial

Aztec

No quiet zone required. Commonly used in transit tickets, boarding passes, and transportation systems.

Transportation

PDF417

Stacked linear symbology for long text. Used in IDs, shipping labels, and document management.

Documents

MaxiCode

UPS/parcel logistics standard. Bullseye center design for high-speed scanning on conveyor systems.

Logistics

Han Xin Code

Chinese standard designed for large character sets and industrial use. Supports extensive Unicode characters.

Chinese Standard

JAB Code (Color)

Color 2D barcode for higher data density. Niche but notable for specialized applications requiring color coding.

Color

1D Barcodes (Linear)

Traditional linear barcodes that have been the foundation of product identification and inventory management.

UPC-A / UPC-E

Retail standard in North America. UPC-E is the compressed variant for smaller packages.

Retail

EAN-13 / EAN-8

Global retail standard (GTIN). EAN-8 designed for small packages with limited space.

Global Retail

Code 128

High-density, full ASCII support. Widely used in shipping labels, logistics, and inventory management.

Logistics

Code 39 / Code 93

Industrial and inventory applications. Code 93 offers improved density and data integrity over Code 39.

Industrial

Interleaved 2 of 5 (ITF)

Numeric-only barcode. Commonly used for cartons, warehouse cases, and bulk packaging applications.

Warehouse

Codabar / MSI / Pharmacode

Legacy and pharmaceutical labeling systems. Still found in specialized operations and healthcare applications.

Legacy

Best Use Cases by Type

Marketing

Dynamic QR (Model 2) with branding, frames, and analytics.

Regulated Labeling

Data Matrix, PDF417, or QR with error correction.

Tickets/Boarding

Aztec, PDF417, or QR depending on ecosystem.

Tight Spaces

Micro QR, rMQR, or EAN-8.

Design & SEO Best Practices

  • 1 Maintain quiet zones and adequate print size (≥ 0.8 in / 2 cm for most signage).
  • 2 Ensure contrast ratio ≥ 4.5:1; avoid low-contrast or busy backgrounds.
  • 3 Use branded frames and clear CTAs; place above the fold for landing pages.
  • 4 For SEO, prefer dynamic QR to control URLs, run A/B tests, and preserve link equity.
  • 5 Add alt text near scannable images and provide human-readable fallback links.