?? QR Code Generator

Create QR codes for URLs, text, and more

Your QR code will appear here

đź“š Complete Guide to QR Code Generation

What is a QR Code?

QR stands for Quick Response. Developed in 1994 by Denso Wave (a Toyota subsidiary) for tracking car parts, QR codes can store up to 4,296 alphanumeric characters. Unlike traditional barcodes (which only hold ~20 characters), QR codes bridge the physical and digital worlds instantly.

Every smartphone can scan QR codes natively—no app needed (on iOS 11+ and modern Android). Use our free QR code generator to create custom QR codes for URLs, text, WiFi passwords, and more.

Types of QR Codes

đź”— URL QR Codes

Link to websites, landing pages, or any web address

đź“ť Text QR Codes

Store plain text messages up to ~4,000 characters

📡 WiFi QR Codes

Share network credentials—scan to connect automatically

👤 vCard QR Codes

Share contact info directly to phone's address book

Static vs Dynamic: Our QR code maker generates static QR codes that never expire—no server dependency. Use dynamic QR codes only when you need tracking or editable destinations.

Best Practices for QR Code Creation

  • Size Matters: Minimum 2cm x 2cm for close-range scanning. For billboards, follow the "10:1 rule"—10m distance = 1m QR code width.
  • High Contrast: Dark QR code on light background works best. Avoid low contrast or busy backgrounds.
  • Add Call-to-Action: Tell users why to scan: "Scan to view menu" or "Scan for exclusive discount"
  • Test Before Printing: Always test on multiple devices (iPhone, Android) before mass printing.
  • Keep URLs Short: Shorter URLs = simpler QR codes = faster scans. Use URL shorteners if needed.

Common QR Code Use Cases

📢 Marketing & Advertising
đź’Ľ Business Cards
📡 WiFi Password Sharing
🍕 Restaurant Menus
🎟️ Event Tickets
📦 Product Packaging
đź’ł Contactless Payments
🏠 Real Estate Listings

QR Code Size & Error Correction

QR codes have built-in error correction that allows them to be scanned even if partially damaged. Higher error correction means more reliability but larger codes:

Level Recovery Best For
Low (L) ~7% Digital displays, clean environments
Medium (M) ~15% General purpose, indoor use
Quartile (Q) ~25% Most printed materials
High (H) ~30% Logo overlays, outdoor signage

Our QR code generator uses High (H) error correction for maximum reliability.

Frequently Asked Questions

Do QR codes expire?
Static QR codes never expire. They're just encoded data with no server dependency. Our free QR code generator creates static codes that work forever. Dynamic QR codes may expire if the hosting service shuts down.
How do I create a QR code for free?
Simply enter your URL or text in the input field above, select your preferred size, and click "Generate QR Code". Download it as a PNG image instantly—no signup required, completely free.
Can I generate a WiFi QR code?
Yes! Enter your WiFi credentials in this format: WIFI:T:WPA;S:YourNetworkName;P:YourPassword;; and generate the QR code. When scanned, phones will offer to connect automatically.
How much data can a QR code hold?
QR codes can hold up to 7,089 numeric characters or 4,296 alphanumeric characters. However, for reliable scanning, keep content under 500 characters. Longer content creates denser, harder-to-scan codes.
Are QR codes safe to scan?
QR codes themselves are safe, but always preview the URL before visiting. Malicious codes can link to phishing sites. Most smartphone cameras show the URL before opening—always verify it looks legitimate.
Can QR codes work without internet?
Yes! Text, WiFi, and vCard QR codes work completely offline. Only URL QR codes require internet to load the destination page after scanning.

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