What data can a QR code store?

QR codes can store URLs, plain text, email addresses, phone numbers, WiFi credentials (network name and password), SMS messages, vCard contact information, calendar events, and geographic coordinates. They can hold up to 3KB of data depending on the error correction level.

No, QR codes themselves do not expire. They are static images that encode data. However, if a QR code encodes a URL and that URL becomes invalid, the QR code will point to a broken link. This is why QR codes that encode direct text are permanent.

Can I customize QR codes?

This tool generates standard black-and-white QR codes. For custom colors or logos embedded in QR codes, third-party design tools can add branding elements while keeping the code scannable. Higher error correction levels allow more room for custom designs.

Developer

QR Code Generator

Generate QR codes for URLs, text, WiFi, and more.

Text Options

Text Content

Size: 256px

Error Correction

Preview

Your QR code will appear here

Documentation

How to Use

Choose QR type

Select what type of content you want to encode (URL, text, WiFi, etc.)

Enter content

Type or paste the content you want to encode in the QR code.

Generate & download

Your QR code appears instantly. Download or copy it.

Pro Tips

High error correction level allows QR codes to work even if damaged

QR codes can store up to 3KB of data

Examples

Input

https://example.com

Output

QR code pointing to URL

QR Code Generator

How to Use

Choose QR type

Enter content

Generate & download

Examples

FAQ

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QR Code Generator

How to Use

Choose QR type

Enter content

Generate & download

Examples

FAQ

What data can a QR code store?

Do QR codes expire?

Can I customize QR codes?

Related Tools

Random Generator

UUID Generator

Password Generator