QRWolf
Features
Pricing
Templates
Tools
Learn
Docs
Sign In
Get Started
Learn
Technical
19 Articles
Technical
Developer-focused content
QR Basics
How It Works
Use Cases
Industries
Best Practices
Technical
technical
6 min read
QR Code Data Capacity: How Much Can a QR Code Store?
Understand QR code data capacity limits, encoding modes, and optimization techniques to store maximum information in your QR codes.
data capacity
encoding
optimization
+2
technical
6 min read
QR Code Versions Explained: From 1 to 40
Understand QR code versions, what determines version selection, and how version affects size, capacity, and scannability of your QR codes.
versions
modules
size
+2
technical
8 min read
QR Code Security: Risks and Best Practices
Learn about QR code security risks including quishing, malware, and phishing attacks. Discover best practices for both creating and scanning QR codes safely.
qr code security
quishing
qr code phishing
+2
technical
10 min read
QR Code API: Generate Codes Programmatically
Learn how to use QR code APIs to generate codes programmatically. Covers authentication, endpoints, parameters, and integration patterns for developers.
qr code api
api
developer
+2
technical
9 min read
QR Code File Formats: PNG vs SVG vs PDF
Understand the differences between PNG, SVG, and PDF for QR codes. Learn which format to choose for print, web, and different use cases.
file formats
png
svg
+4
technical
9 min read
QR Code Quiet Zone: Why Margins Matter for Scanning
Learn about QR code quiet zones—the essential white space that makes codes scannable. Understand specifications, common mistakes, and how to ensure reliable scanning.
quiet zone
qr code margin
technical
+2
technical
9 min read
QR Code Encoding Modes Explained
Understand the four QR code encoding modes—numeric, alphanumeric, byte, and kanji—and how they affect data capacity and code size.
encoding
data capacity
technical
+3
technical
9 min read
QR Code Analytics: Metrics That Matter
Learn which QR code metrics actually drive decisions. Understand scan data, conversion tracking, and how to measure ROI from your QR code campaigns.
analytics
metrics
tracking
+4
technical
8 min read
QR Code Colors: Contrast and Readability Guide
Learn how to choose QR code colors that scan reliably. Understand contrast ratios, safe color combinations, and when custom colors work or fail.
qr code colors
qr code design
qr code contrast
+1
technical
9 min read
Micro QR Codes vs Standard QR Codes
Understand the differences between Micro QR codes and standard QR codes. Learn when smaller codes make sense and what tradeoffs they involve.
micro qr code
qr code types
qr code size
+2
technical
9 min read
QR Code Structured Append: Linking Multiple Codes
Learn how Structured Append mode lets you split large data across multiple QR codes that reassemble when scanned. Technical guide covering use cases, limitations, and alternatives.
structured append
qr code technical
data capacity
+1
technical
7 min read
QR Code ECI Mode: Extended Channel Interpretation Explained
Understand QR code ECI mode for encoding international characters, special symbols, and non-Latin text. Technical guide for developers working with multilingual QR codes.
qr code eci
qr code encoding
international qr codes
+1
technical
8 min read
QR Code Reed-Solomon Error Correction: A Technical Deep Dive
Understand how Reed-Solomon error correction enables QR codes to remain scannable despite damage, dirt, or partial obstruction. Technical explanation for developers.
qr code error correction
reed-solomon
qr code reliability
+1
technical
8 min read
QR Code Generation Algorithms Explained
Learn how QR codes are generated algorithmically, from data encoding to module placement to masking. Technical guide for developers building QR code systems.
qr code generation
qr code algorithm
qr code encoding
+1
technical
11 min read
QR Code Webhooks: Real-Time Scan Notifications
Set up webhook notifications for QR code scans. Learn about payload formats, HMAC signature verification, retry logic, and building real-time integrations.
webhooks
api
integrations
+2
technical
9 min read
QR Code Bulk Generation API Guide
Generate up to 100 QR codes per request with QRWolf's REST API. Authentication, endpoints, rate limits, and bulk creation patterns for developers.
api
bulk
developer
+2
technical
9 min read
Embeddable QR Code Widget: Add to Your Website
Add a free QR code generator widget to any website with a single line of code — supports URL, text, WiFi, email, and phone types with full theme customization.
widget
embed
iframe
+2
technical
9 min read
What is a GTIN? Global Trade Item Number Explained
Understand GTINs — the numbers behind every barcode. Learn about GTIN-8, GTIN-12, GTIN-13, and GTIN-14 formats, check digit algorithms, and how GTINs work in GS1 Digital Link QR codes.
gtin
global trade item number
upc
+2
technical
12 min read
GS1 Application Identifiers: Complete Reference for QR Codes
A practical reference for GS1 Application Identifiers used in Digital Link QR codes. Covers identification, traceability, measurement, and trade AIs with format rules and validation.
gs1 application identifiers
gs1 ai codes
gs1 data qualifiers
+1