Generate QR codes for URLs, text, emails, phone numbers, WiFi networks, and more. Free online tool.
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QR (Quick Response) codes are two-dimensional barcodes that can store various types of information. They were invented in 1994 by Denso Wave, a Japanese company, and have become ubiquitous in modern digital communication.
Unlike traditional barcodes that only store data horizontally, QR codes can store data both horizontally and vertically, allowing them to hold much more information. They can be scanned quickly using any smartphone camera or dedicated QR code reader.
Direct links to websites, making it easy for users to visit specific pages without typing long URLs. Perfect for marketing materials and business cards.
Example: https://tools64.com
Store vCard data including name, phone number, email, and address. When scanned, users can instantly save contact details to their phone.
Format: vCard standard
Share WiFi network credentials securely. Users can connect to networks without manually entering network names and passwords.
Format: WIFI:S:NetworkName;T:SecurityType;P:Password;;
Store any text information like messages, notes, or instructions. Useful for sharing information that doesn't fit other categories.
Example: "Hello World! This is a sample message."
Include QR codes on business cards, flyers, posters, and product packaging to direct customers to websites, social media, or promotional content.
Create QR codes with your contact information for easy sharing at networking events, conferences, or business meetings.
Generate QR codes for WiFi networks in homes, offices, cafes, or hotels, allowing guests to connect quickly without asking for credentials.
QR codes are widely used in mobile payment systems like PayPal, Venmo, and various banking apps for secure money transfers.
The input data is converted into binary format and encoded using Reed-Solomon error correction
The encoded data is arranged in a two-dimensional matrix with positioning patterns
Redundant data is added to allow the QR code to be read even if partially damaged
The final matrix is converted into black and white squares that form the QR code
Standard QR codes can store up to 3,000 characters, depending on the type of data and error correction level. Numeric data can store up to 7,000 characters.
QR codes themselves don't provide encryption - they simply store data in plain text. For sensitive information, consider what you're encoding and use additional security measures.
Yes! QR codes can be scanned from computer screens, tablets, and smartphones. Just make sure the display is bright enough and the code is clearly visible.
Traditional barcodes only store data horizontally and can hold limited information. QR codes store data in both directions, allowing them to hold much more data and be scanned from any angle.