Barcodes Wiki

Learn about barcodes, QR codes, and barcode scanning technology. Comprehensive guides and tutorials.

1D vs 2D Barcodes: Complete Comparison Guide

Compare one-dimensional (linear) and two-dimensional (matrix) barcodes. Understand the technical differences, use cases, capacity, and how to choose the right type for your application.

Aztec Code: Complete Guide to High-Density 2D Barcodes

Discover Aztec Code barcodes and their applications in transportation, ticketing, and mobile technology. Learn about technical specifications and implementation strategies.

Barcode Lookup: How to Find Product Information from Any Barcode

Look up any barcode to find product details, pricing, and manufacturer info. Covers UPC lookup, EAN search, free barcode databases, and how to decode barcode numbers.

Barcode Print Quality & Verification: Complete Guide

Master barcode print quality standards, ISO grading, verification processes, and troubleshooting techniques. Learn how to ensure your generated barcodes scan reliably every time.

Understanding Barcode Numbers: What the Data Means

Learn how to read and interpret barcode numbers. Understand GS1 country prefixes, manufacturer codes, product identifiers, check digits, and what the data in different barcode formats actually represents.

Barcode Scanner App vs Browser Scanner: Which Is Better?

Compare dedicated barcode scanner apps with web-based browser scanners. Understand the trade-offs in privacy, speed, features, and convenience to choose the right tool.

Barcode Scanner for Inventory: How to Set Up a Scanning System

Learn how to set up a barcode scanner for inventory management. Covers phone-based scanning, USB handheld scanners, spreadsheet integration, software options, and best practices for small businesses.

How to Check if a Product is Real or Fake with a Barcode Scanner

Learn what barcode scanning can and can't tell you about product authenticity. Step-by-step guide to verifying products using barcode numbers, GS1 databases, and red flags for counterfeits.

Barcode Scanner Not Working? Troubleshooting Guide

Fix common barcode scanner problems: won't read, slow scanning, wrong data, connection issues. Covers phone cameras, web scanners, handheld USB scanners, and Bluetooth devices.

Barcode vs QR Code vs RFID: Which Technology Do You Need?

Compare barcodes, QR codes, and RFID tags side by side. Covers cost, read range, data capacity, scanning speed, and the best use cases for each technology in retail, logistics, and inventory.

Barcode vs QR Code: Key Differences and When to Use Each

Compare traditional 1D barcodes and QR codes side by side. Learn the technical differences, data capacity, use cases, and which format fits your needs.

Barcodes Across Industries: How Barcode Scanners Transform Business Operations

Discover how barcode scanners transform operations in retail, healthcare, logistics, manufacturing, education, and more industries. Complete implementation guide included.

Barcodes for Amazon FBA: Requirements, FNSKU, and How to Get Started

Learn about Amazon FBA barcode requirements — the difference between UPC, EAN, and FNSKU barcodes, when to use each, and how to avoid listing suspensions.

Barcodes in Healthcare: GS1, UDI, and Patient Safety

Learn how barcodes protect patients and enable traceability in healthcare — from pharmaceutical serialization and medical device UDI to bedside medication verification.

Best Barcode Scanner Apps in 2026: Free Options for iPhone & Android

Compare the best barcode scanner apps for iPhone, Android, and PC. Covers free options, privacy, ad-free scanning, inventory use, and browser-based alternatives that require no download.

Bulk Barcode Generator: How to Create Hundreds of Barcodes at Once

Generate barcodes in bulk for inventory, products, or shipping. Covers batch workflows using spreadsheets, command-line tools, and online generators with CSV import.

Choosing the Right Barcode Type for Your Business

A comprehensive guide to selecting the perfect barcode format for your specific needs. Compare features, benefits, and use cases.

Codabar Barcode: Complete Guide to Library, Blood Bank, and Legacy Applications

Learn about Codabar barcodes, one of the earliest barcode symbologies still used in libraries, blood banks, and FedEx airbills. Covers encoding, structure, and modern alternatives.

Code 128 Barcode: Complete Guide for Logistics and Shipping

Discover everything about Code 128 barcodes, including technical specifications, shipping applications, and why it's the preferred choice for supply chain operations.

Code 128 vs Code 39: Choosing the Right Linear Barcode

Compare Code 128 and Code 39 barcodes in density, character set, error checking, and industry use. Learn which linear barcode format fits your application.

Code 128 vs Code 93: Choosing the Right Alphanumeric Barcode

Compare Code 128 and Code 93 barcodes in density, character sets, error checking, and industry use. Learn which alphanumeric barcode format fits your application.

Code 39 Barcode: Complete Guide to the Original Alphanumeric Standard

Learn about Code 39 barcodes, the first alphanumeric symbology widely adopted in automotive, defense, and healthcare industries. Covers encoding, specifications, and implementation.

Code 93 Barcode: Complete Guide to High-Density Alphanumeric Encoding

Learn about Code 93 barcodes, a compact alternative to Code 39 with higher data density and built-in error checking. Covers technical structure, encoding, and use cases.

Data Matrix Barcode: Complete Guide to 2D Matrix Codes

Explore Data Matrix barcodes and their applications in electronics, healthcare, and manufacturing. Learn technical specifications, benefits, and implementation strategies.

EAN-13 Barcode: Complete Guide to International Retail Standards

Learn everything about EAN-13 barcodes, from technical specifications to industry applications. Discover how this global retail standard works and when to use it.

EAN-13 vs EAN-8: Which Product Barcode Do You Need?

Compare EAN-13 and EAN-8 barcodes — when to use the full-size vs. compact format, how they differ in structure, and which one your product packaging requires.

EAN-13 vs UPC-A: Which Product Barcode Do You Need?

Compare EAN-13 and UPC-A barcodes side by side. Learn when to use each format, how they relate to each other, and which one your product needs for retail sales.

EAN-8 Barcode: Complete Guide to Compact Retail Codes

Learn about EAN-8 barcodes for small product packaging. Understand technical specifications, retail applications, and when to choose EAN-8 over larger barcode formats.

Free Barcode Generator: How to Create Barcodes Online

Learn how to create barcodes for free using online generators. Step-by-step guide covering format selection, data entry, output options, and best practices for print-ready barcodes.

GS1-128 Barcode: Complete Guide to Supply Chain Standards

Master GS1-128 barcodes with Application Identifiers (AIs), SSCC shipping codes, logistics implementation, and supply chain best practices. The essential guide for warehouse and distribution operations.

How Much Does a GS1 Barcode Cost? 2026 Pricing Breakdown

GS1 barcode registration costs explained: company prefix fees, annual renewal pricing, single GTIN options, and cheaper alternatives. Updated for 2026 with current GS1 US pricing.

GS1 Data Matrix: Complete Guide to Serialization and Traceability

Learn about GS1 Data Matrix barcodes for healthcare serialization, pharmaceutical traceability, and compact product identification. Covers Application Identifiers, FNC1, and regulatory compliance.

GS1 QR Code: Complete Guide to Digital Link Barcodes

Learn about GS1 QR Codes for consumer engagement, product authentication, and the GS1 Digital Link standard. Covers encoding, use cases, and the transition from linear barcodes.

GS1 Sunrise 2027: What the Shift to 2D Barcodes Means for Retail

Understand GS1's Sunrise 2027 initiative — why retail is moving to 2D barcodes at point of sale, what it means for brands and retailers, and how to prepare.

How Barcodes Work: The Science Behind the Scan

Understand the technology behind barcodes — how data is encoded in bars and spaces, how scanners read them, and why different barcode formats exist.

How to Create a Barcode in Excel: 3 Methods That Work

Generate barcodes in Excel using barcode fonts, add-ins, or online generators. Step-by-step instructions for creating scannable Code 128, Code 39, and UPC barcodes from spreadsheet data.

How to Create Inventory Barcodes: Free Setup Guide

Set up a barcode inventory system from scratch. Learn which format to use, how to design a numbering scheme, and how to generate and print barcode labels for free.

How to Create a QR Code for WiFi: Connect Guests Instantly

Create a free WiFi QR code that lets guests connect to your network by scanning — no typing passwords. Step-by-step guide for homes, offices, cafés, and Airbnbs.

How to Create a Shipping Label Barcode: Complete Guide

Learn how to create barcodes for shipping labels using Code 128, GS1-128, and ITF-14 formats. Step-by-step guide covering format selection, data encoding, and print requirements.

How to Get a Barcode for Your Product: Step-by-Step Guide

Learn how to obtain barcodes for your products through GS1, choose the right barcode format, and avoid common mistakes. Complete guide for new brands and small businesses.

How to Make a Barcode for Etsy Products: Seller's Guide

Learn whether your Etsy products need barcodes, how to get UPC or EAN codes for wholesale and retail, and how to generate barcode graphics for free. Complete guide for Etsy sellers.

How to Make a QR Code for a Restaurant Menu: Free Guide

Create a free QR code that links to your restaurant's digital menu. Step-by-step instructions for setup, printing, and placement — no monthly fees or subscriptions.

How to Print Barcode Labels at Home or Office

Print barcode labels using any home or office printer. Covers label sheets, thermal printers, free templates, and step-by-step setup for inventory, products, and shipping.

How to Scan a Barcode on iPhone and Android: Complete Guide

Learn how to scan barcodes and QR codes on iPhone and Android phones using built-in camera apps, Google Lens, and web-based scanners. Step-by-step instructions for every method.

ITF-14 Barcode: Complete Guide to Outer Case and Shipping Identification

Learn about ITF-14 barcodes used on shipping cartons and cases in the supply chain. Covers GS1 structure, bearer bars, packaging levels, and implementation for logistics.

PDF417 Barcode: Complete Guide to Portable Data Files

Discover PDF417 barcodes and their role in identification documents, transportation, and government applications. Learn specifications, use cases, and implementation details.

PDF417 vs QR Code: Which 2D Barcode Format Do You Need?

Compare PDF417 and QR codes in data capacity, scanning, size, and use cases. Learn when to use each 2D barcode format for IDs, tickets, logistics, and more.

The Ultimate QR Code Guide: Everything You Need to Know

Learn everything about QR codes - how they work, what they can store, and how to use them safely. Complete guide for beginners and experts.

QR Code vs Data Matrix: Which 2D Barcode Should You Use?

Compare QR codes and Data Matrix barcodes in size, data capacity, scanning, and use cases. Learn which 2D barcode format fits your application.

Scan Barcode from Image: How to Upload and Decode Photos & Screenshots

Scan barcodes from photos, screenshots, PDFs, and saved images. Upload any image containing a barcode to decode it instantly — no app or camera needed.

Small Business Barcode Implementation: Complete Setup Guide

Step-by-step guide to implementing barcodes in your small business. Learn about choosing barcode types, getting GS1 numbers, equipment requirements, costs, and practical setup for inventory, retail, and shipping.

UPC-A Barcode: The Complete Guide to North American Product Codes

Master UPC-A barcodes with this comprehensive guide covering technical details, retail applications, and implementation best practices for product identification.

UPC-A vs UPC-E: Full-Size vs Compact Product Barcodes

Compare UPC-A and UPC-E barcodes. Learn when to use the compact UPC-E format, how zero suppression works, and which format your product packaging requires.

UPC-E Barcode: Complete Guide to Compressed Product Codes

Learn about UPC-E barcodes, the compressed version of UPC-A for small retail packaging. Covers technical structure, zero suppression rules, and implementation best practices.

Warehouse Barcode Systems: Setup and Best Practices

Learn how to implement barcode systems in warehouse operations — from choosing equipment and barcode formats to scanning workflows for receiving, putaway, picking, and shipping.