Generate QR Codes Online: Text, URL, WiFi
Create QR codes from URLs, text, WiFi credentials, or vCards instantly. Download as PNG or SVG. No upload, fully browser-based.
Try the free online tool mentioned in this guide:QR Code Generator
What are QR codes and why use them?
QR (Quick Response) codes are 2D barcodes that store data — URLs, text, phone numbers, WiFi credentials — in a pattern that smartphones can scan. A single QR code replaces typing a long URL or password by hand.
Common uses: linking physical products to web pages, sharing WiFi passwords, contact information (vCards), event registrations, and payment details.
Types of QR code content
URL — Most common. Scanned phones are redirected to the URL.
Plain text — Display any message or data when scanned.
WiFi — Encode SSID, password, and security type. Scanned phones auto-connect to the WiFi network.
vCard — Store contact info (name, phone, email, address) as a scannable contact.
Phone number — Initiate a call when scanned.
Email — Compose an email when scanned.
SMS — Send a preset text message when scanned.
QR code error correction and customization
QR codes have built-in error correction: even if 30% of the code is damaged or obscured, it remains scannable. Higher error correction levels allow larger customizations (adding logos, colors).
// WiFi QR code data format
WIFI:T:WPA;S:NetworkName;P:Password;;
// vCard QR code
BEGIN:VCARD
FN:Alice Smith
TEL:+1234567890
EMAIL:alice@example.com
END:VCARDDownload formats and sizing
QR codes can be downloaded as PNG (raster) or SVG (vector). PNG is fine for fixed sizes; SVG scales infinitely without quality loss. MyDevTools lets you set size and error correction level before downloading.
Frequently asked questions
Can I add a logo to the center of a QR code?
Logos are possible but reduce scannability. Use error correction level "H" (highest) if you plan to overlay a logo.
What if my QR code is damaged or partially obscured?
QR codes with "H" error correction can recover if up to 30% of the code is damaged. Higher error correction makes the code more robust but slightly larger.
Is it safe to generate QR codes in a browser?
Yes, QR generation is client-side only. Nothing leaves your browser.