QR Code Generator
Generate QR codes for URLs, plain text, Wi-Fi credentials, contact cards, and more. Download as PNG or SVG. Runs entirely in your browser.
Calculator
Coming Soon
The interactive calculator for QR Code Generator is under development. The formula, worked examples, and FAQ below are already available for reference.
Accuracy & Sources
Last reviewed: May 2026. All calculations run in your browser. No data is sent to any server.
Frequently Asked Questions
No. QR codes are generated entirely in your browser using JavaScript. No data is uploaded, stored, or logged. Your URL or text content stays on your device.
QR codes can encode URLs, plain text, phone numbers, email addresses, Wi-Fi network credentials (SSID and password), contact cards (vCard), SMS messages, and more. This generator supports all common content types.
For reliable scanning, a printed QR code should be at least 2.5 cm × 2.5 cm (about 1 inch). For scanning at distance — such as on a poster or billboard — scale up proportionally. The minimum module size (smallest square in the code) should be no less than 0.4 mm when printed.