Free QR Code Generator
Generate QR codes for URLs, text, or WiFi credentials and download as PNG.
About This Tool
The QR Code Generator instantly creates scannable QR codes from URLs, text, Wi-Fi credentials, contact information, and more. You can customize the size and download the generated code as a PNG image, making it perfect for marketing materials, business cards, event tickets, and product packaging.
How It Works
QR (Quick Response) codes encode data into a two-dimensional matrix of black and white modules. The encoding process first converts your input text into a binary data stream, then applies Reed-Solomon error correction to ensure the code remains readable even if up to 30% of it is damaged or obscured.
The data is arranged in a specific pattern that includes finder patterns (the three large squares in corners) for orientation detection, timing patterns for module grid alignment, and format/version information. The remaining modules store the actual encoded data.
This generator supports multiple data types: plain text, URLs (with automatic URI scheme detection), Wi-Fi network configuration (SSID, password, encryption type), and vCard contact data. Error correction level M (15% recovery) is used by default, balancing data capacity with reliability. All processing is done in your browser — no data is sent to any server.
Related Articles
Make a Free QR Code in 10 Seconds — What Most Tutorials Don't Tell You
Static vs. dynamic QR codes, minimum print size for scanning, and why 90% of free QR services add hidden tracking. The honest guide to QR codes in 2026.
2026-03-26Why the Same Blue Looks Different on Print and Screen — The Color Code Guide
HEX, RGB, HSL, and CMYK explained in plain language. How to pick palettes, check WCAG contrast, and avoid the 'print looks nothing like screen' trap.