Does a QR Code Expire? Everything About QR Code Expiration
Static QR codes never expire. Dynamic QR codes can — learn why, how to avoid losing scans, and how to use expiration on purpose for coupons and flash sales.
Tutorials
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Everything about QR Codes.
Practical guides, comparisons and tutorials for using QR Code in restaurants, events, marketing, digital business cards and more.
Featured
QR Code for restaurants: the complete guide (digital menu, ordering, Wi-Fi)
How to use QR Code in restaurants for digital menus, contactless ordering, Google reviews and Wi-Fi. A practical guide without jargon.
Recent articles
Use Cases
QR Code for Video: open an MP4 or video link directly on any phone
Create a QR Code that opens a video — your own MP4 or a link — on any smartphone. Tutorials, testimonials, real estate, training. Dynamic, trackable, no reprinting.
Tutorials
Barcode Checker: How to Validate GTIN, EAN and UPC Before Printing
Learn how the GTIN/EAN/UPC check digit works and use the barcode checker to catch errors before they reach the packaging line. Full tutorial.
Tutorials
How to check if a link is safe: URL checker guide
Learn how to verify a link before clicking. See how Code2Scan's URL checker reveals hidden destinations, HTTPS status, and site reputation instantly.
Marketing
WhatsApp bulk messaging: how to send blasts responsibly (without getting banned)
Learn how to send WhatsApp messages to your customer base in bulk, safely and responsibly, without risking your number getting banned.
Use Cases
QR Code for Images and Photo Galleries: open an entire album on your phone
Learn how to create a QR Code that opens a single image or a full photo gallery on any smartphone. Use cases, step-by-step guide and common mistakes.
Tutorials
Password-Protected QR Code: exclusive access for the right audience
Learn how to create a password-protected QR Code on Code2Scan. Secure confidential documents, B2B price lists, paid courses, and VIP content easily.
Use Cases
SMS QR Code: open a pre-filled text message with one scan
Create a QR Code that opens the SMS app with the recipient number and message already filled in. Perfect for contests, opt-ins, and support lines.
Use Cases
Phone QR Code: scan and call instantly — how to create and use
Create a QR Code that opens the phone dialer with your number pre-filled. Tutorial, use cases (taxi, support, real estate) and common mistakes to avoid.
Use Cases
Text QR Code: display a message without opening any website
Create a QR Code that shows plain text when scanned — no internet, no server, no link. Works offline, perfect for instructions, notices, and technical labels.
Tutorials
Online Barcode Reader: scan any barcode from your phone or PC — no app needed
Learn how to read barcodes online without installing any app. Scan EAN, QR Code and more using your camera or a photo. Practical guide with common errors and fixes.
Tutorials
What Is a QR Code and How Does It Work: The Complete Beginner's Guide
Understand in simple terms what a QR Code is, how your camera reads the little squares, what it can hold, and where to use it. A clear guide for beginners.