Free QR Code Generator — Create QR Codes Instantly

Generate QR codes for URLs, text, email addresses, phone numbers, or any data. Download your QR code as an image — free, no sign-up required.

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Frequently Asked Questions

What is a QR code?

A QR (Quick Response) code is a two-dimensional barcode that stores data in a pattern of black and white squares. It was invented in 1994 by Denso Wave for tracking automotive parts and has since become widely used for sharing URLs, contact info, Wi-Fi credentials, and more.

How do QR codes work?

QR codes encode data using a matrix of dark and light modules. A smartphone camera or QR scanner reads the pattern, detects the three large squares for orientation, and decodes the binary data using Reed-Solomon error correction. This allows QR codes to remain readable even if partially damaged.

What can I put in a QR code?

QR codes can store URLs, plain text, email addresses (mailto:), phone numbers (tel:), SMS messages, Wi-Fi credentials, vCard contact info, calendar events, and geographic coordinates. The maximum capacity is about 4,296 alphanumeric characters.

Are QR codes free to use?

Yes. The QR code standard is open and free to use without any licensing fees. While Denso Wave holds the patent, they have chosen not to enforce it. You can generate and use QR codes for personal and commercial purposes at no cost.