Generate QR codes for URLs, text, email, WiFi, and more. Download as PNG.
QR (Quick Response) codes encode data in a two-dimensional grid of black and white squares. Invented by Denso Wave in 1994 for tracking automotive parts, they've become universal for URLs, WiFi credentials, payments, and contact information.
A QR code contains several key elements: finder patterns (the three large squares in corners) help scanners detect and orient the code, alignment patterns correct for distortion, and error correction (Reed-Solomon codes) allows the code to be read even when partially damaged — up to 30% at the highest level.
QR codes can store up to 4,296 alphanumeric characters or 7,089 numeric digits, though shorter content produces smaller, more reliably scannable codes. For URLs, keep them short — use a link shortener if needed. This tool generates standard QR codes that work with any smartphone camera or scanner app.
This tool in other languages:
Français:
Générateur de code QR
Español:
Generador de código QR
Deutsch:
QR-Code Generator
Português:
Gerador de código QR
日本語:
QRコードジェネレーター
中文:
QR码生成器
한국어:
QR 코드 생성기
العربية:
مولد رمز QR
Pick a content type (URL, text, email, phone, SMS, WiFi), fill in the details, and the QR code generates instantly. Adjust size, foreground/background color, and error correction level, then click Download PNG. No signup, no watermark, no tracking.
This tool supports: URL (most common), plain text, email (opens mail app with recipient pre-filled), phone (triggers dial), SMS (opens messaging app), and WiFi (auto-joins the network when scanned on modern phones).
Error correction lets a QR code remain scannable even when partially damaged or obscured. Low (7%) — for clean digital use. Medium (15%) — balanced default. Quartile (25%) — good for printed materials. High (30%) — required if you're adding a logo overlay in the center.
Select the WiFi content type, enter your SSID, password, and encryption type (WPA/WPA2 is typical). When someone scans the QR code with a modern phone, their device auto-joins — no password typing. Great for guest networks at cafes, offices, and events.
Yes, but keep strong contrast between foreground and background (dark on light is safest). Light foreground on dark background works for some scanners but fails on older ones. Avoid reds on greens or other combos that look dim in grayscale — most scanners read in grayscale first.
The QR code standard itself is patent-free and royalty-free for any use. The codes generated here are plain PNGs with no restrictions — use them on business cards, posters, products, or anywhere else.