GS1-128

Check Digit Calculator

Calculate and verify check digits for EAN-13, UPC-A, ISBN-13, ISSN, ITF-14, and SSCC barcodes. Step-by-step Modulo 10 calculation with visual …

GS1 Prefix Lookup

Look up the country of registration for any GS1 barcode prefix. Enter a barcode number or 3-digit prefix to find …

Barcode Validator

Validate barcode data integrity across multiple symbologies. Checks format compliance, character set validity, check digit correctness, and data length requirements …

Barcode Print Size Calculator

Calculate the correct print dimensions for any barcode symbology at a given magnification factor. Shows minimum X dimension, height, quiet …

Symbology Recommender

Answer a series of questions about your data type, scanning environment, label space, and industry to get a personalized barcode …

Barcode vs RFID: When to Use Each Technology

A practical comparison of barcode and RFID identification technologies — cost, read range, speed, and hybrid deployment strategies.

GS1 Barcodes Explained: The Global Language of Commerce

An introduction to the GS1 system — company prefixes, GTINs, application identifiers, and how 2 million+ companies use GS1 barcodes.

Code 128: The Swiss Army Knife of 1D Barcodes

Everything about Code 128: three code sets (A/B/C), automatic subset switching, FNC1 for GS1-128, and why it dominates shipping and …

GS1-128 (formerly UCC/EAN-128): The Supply Chain Workhorse

Technical guide to GS1-128: FNC1 prefix, application identifier structure, date formats, serial numbers, and SSCC pallet labeling.

ITF-14: The Outer Case Barcode for Logistics

ITF-14 explained: interleaved 2-of-5 encoding for GTIN-14, bearer bar requirements, corrugated board printing, and case-level identification.

Composite Barcodes: Linking 1D and 2D in One Symbol

How GS1 Composite Component barcodes pair a linear symbology with a 2D component to carry supplementary data on a single …

GS1 Application Identifiers: The Barcode Data Dictionary

A practical reference for GS1 Application Identifiers (AIs) — the numeric prefixes that define batch numbers, expiry dates, serial numbers, …

SSCC & Pallet Labels: Case-Level Supply Chain Tracking

How Serial Shipping Container Codes (SSCC) enable pallet-level tracking — GS1-128 label layout, ASN integration, and warehouse receiving workflows.

EDI & Barcodes: Automating Purchase Orders with ASN

How barcoded shipping labels connect to EDI transactions — ASN (856), purchase orders (850), and the scan-to-receive workflow.

Serialization & Track-and-Trace with Barcodes

How item-level serialization enables track-and-trace — SGTIN, AI(21) serial numbers, event-based traceability, and anti-counterfeiting.

GLN & Location Barcodes: Identifying Places in the Supply Chain

Global Location Numbers (GLN) for identifying warehouses, stores, and delivery docks — structure, allocation, and supply chain use cases.

Barcode Master Data: GDSN & Product Data Synchronization

How the Global Data Synchronisation Network (GDSN) ensures barcode master data is consistent across trading partners worldwide.

Healthcare GS1 Standards: GTIN, AIDC & UDI Compliance

GS1 standards for healthcare: GTIN on medical products, AIDC in clinical settings, and how GS1 barcodes meet FDA and EU …

Omnichannel Barcodes: BOPIS, Ship-from-Store & Returns

How barcodes enable buy-online-pick-up-in-store (BOPIS), ship-from-store fulfillment, and cross-channel return processing.

Medication Barcode Scanning: Reducing Errors at Bedside

How bedside barcode scanning prevents medication errors — the five rights of medication administration and BCMA system design.

FDA UDI Requirements: A Barcode Compliance Guide

Everything medical device manufacturers need to know about FDA Unique Device Identification — GUDID registration, label requirements, and compliance dates.

DSCSA Drug Serialization: Barcode Requirements for Pharma

Drug Supply Chain Security Act compliance through barcodes — NDC in GS1 format, unit-level serialization, and verification requirements.

EU MDR & IVDR: European Medical Device Barcode Regulations

European Union Medical Device Regulation and In Vitro Diagnostic Regulation barcode requirements — UDI-DI, EUDAMED, and compliance timelines.

Pharmacy Dispensing Barcodes: NDC & Unit-of-Use Packaging

How pharmacies use barcodes for dispensing verification — NDC lookup, unit-dose packaging, automated dispensing cabinets, and error prevention.

Warehouse Barcode Systems: WMS Integration Guide

How barcodes integrate with warehouse management systems — receiving, putaway, picking, packing, and shipping workflows.

Shipping Label Barcodes: GS1-128 & Carrier Standards

Creating compliant shipping labels — GS1-128 content, carrier-specific barcode requirements (FedEx, UPS, DHL), and label layout standards.

Pick-Pack-Ship: Barcode Workflows for Order Fulfillment

End-to-end barcode workflows for order fulfillment — wave picking, batch picking, scan-to-verify packing, and shipping label generation.

Cross-Docking with Barcodes: Zero-Inventory Logistics

How barcodes enable cross-docking operations — inbound scanning, sortation, outbound routing, and hub-and-spoke distribution models.

Pallet & Case Labeling: ITF-14 vs GS1-128

When to use ITF-14 for case identification vs GS1-128 for detailed logistics data — label placement, printing, and retailer compliance.

Cold Chain Logistics Barcodes: Frozen & Refrigerated Goods

Barcode labeling for cold chain environments — freezer-grade adhesives, condensation-resistant printing, and temperature-sensitive data encoding.

Returns & Reverse Logistics Barcodes

Barcode-driven reverse logistics: return authorization labels, inspection scanning, grading, restocking, and refurbishment tracking.

Automated Sortation with Barcode Scanning

How high-speed barcode scanners power sortation systems — tunnel scanners, conveyor integration, 6-sided reading, and throughput optimization.

3PL Barcode Standards: Meeting Client Requirements

Barcode compliance for third-party logistics providers — supporting multiple client labeling standards, multi-tenant WMS, and relabeling workflows.

Hazmat & Dangerous Goods Barcode Labels

Barcode labeling for hazardous materials — UN number encoding, GHS integration, DOT compliance, and dual-purpose identification labels.

Thermal Printing for Barcodes: Direct vs Transfer

Choosing between direct thermal and thermal transfer printing — print durability, media costs, resolution, and application suitability.

Printing Barcodes on Corrugated Board: Challenges & Solutions

Technical challenges of printing barcodes on corrugated cardboard — flute washboarding, ink spread, flexographic techniques, and verification tips.

GS1 General Specifications for Symbol Production

The GS1 General Specifications for barcode symbol production — target sizes, placement rules, human-readable text, and packaging artwork guidelines.

Barcode System Architecture: From Scanner to Database

Designing a barcode system end-to-end — scanner input, middleware processing, database storage, and integration with ERP/WMS/POS systems.

GS1-128 Label Generation: A Developer's Guide

Programmatically generating GS1-128 shipping labels — AI encoding, FNC1 handling, ZPL templates, and label printer integration.

ERP Barcode Integration: SAP, Oracle & Microsoft Dynamics

Integrating barcode scanning with major ERP systems — SAP WM/EWM, Oracle WMS Cloud, and Microsoft Dynamics 365 warehouse management.

RFID & Barcodes: Competition, Coexistence & Convergence

The evolving relationship between barcodes and RFID — from Walmart's 2003 mandate to today's hybrid identification strategies.