Do these QR codes expire?

No. The QR codes generated here are static, meaning they directly encode the data you enter. They work forever and do not depend on any external service or redirection.

What is Error Correction Level?

QR codes have built-in redundancy allowing them to be scanned even if damaged or partially obscured. Level L restores ~7% of data, M ~15%, Q ~25%, and H ~30%. Use higher levels if you plan to add a logo in the center or print effectively.

Can I use these QR codes for commercial purposes?

Yes, you can use the QR codes generated here for any purpose, including commercial marketing, business cards, and product packaging, completely free of charge.

How do I create a Wi-Fi QR code?

Select the 'Wi-Fi' tab, enter your network name (SSID), password, and encryption type (WPA/WPA2 is common). Scanning this code will automatically connect a device to your Wi-Fi network.

QR Code Generator

Free online QR code generator. Create high-quality, custom QR codes for URLs, text, Wi-Fi, email, and more. Customize colors, sizes, and error correction levels. Download as PNG or SVG instantly.

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Free online QR code generator. Create high-quality, custom QR codes for URLs, text, Wi-Fi, email, and more. Customize colors, sizes, and error correction levels. Download as PNG or SVG instantly.

How to Use This QR Code Generator

1Select the type of content (URL, Text, Wi-Fi, Email, etc.)
2Enter your data in the input fields
3Customize the QR code appearance (colors, size, margin)
4Adjust the Error Correction Level (Low to High)
5Click 'Download' to save your QR code as a PNG or SVG image

Features

✓Generate QR codes for URLs, Text, Wi-Fi, VCard, Email, SMS
✓Customizable foreground and background colors
✓High-resolution PNG and SVG downloads
✓Adjustable error correction levels (L, M, Q, H)
✓Instant real-time preview
✓No signup or watermarks
✓100% client-side processing

How QR Codes Work

QR (Quick Response) codes are two-dimensional barcodes that can store significant amounts of alphanumeric data. They work by encoding data into a grid of black and white squares which can be scanned by a camera. The three larger squares in the corners act as positioning markers, helping the scanner detect the code's orientation and size.