Generador de códigos QR
Genera códigos QR a partir de texto o URLs.
Acerca de Generador de códigos QR
The GuruAlpha QR Code Generator creates downloadable QR codes from any text, URL, email address, phone number or Wi-Fi configuration. Customize the size, error correction level and colors, then download as PNG or SVG. Perfect for sharing links, contact information and Wi-Fi passwords in a scan-ready format.
QR codes (Quick Response codes) are two-dimensional barcodes that can store up to 4,296 alphanumeric characters. They are scanned by smartphone cameras and widely used for contactless payments, ticketing, marketing, product labeling and information sharing. Creating custom QR codes has never been easier — our tool generates them instantly in your browser.
The tool supports multiple QR code types. URL QR codes link to any web address — scan to visit the page. Text QR codes encode any plain text message. Email QR codes pre-fill a recipient and subject when scanned. Phone QR codes initiate a call when scanned. Wi-Fi QR codes encode network name, password and security type — scan to connect without typing the password.
Customization options let you match QR codes to your brand. Choose foreground and background colors (maintaining sufficient contrast for reliable scanning). Adjust the size for different use cases — small for business cards, large for posters. Set error correction level: Low (7% recovery), Medium (15%), Quartile (25%) or High (30%). Higher error correction allows the code to be scanned even if partially damaged or obscured.
The tool generates QR codes entirely in the browser using JavaScript — no image processing happens on a server. This means your data stays private and generation is instant. Download the QR code as PNG for general use or SVG for scalable, print-quality output. SVG files can be resized to any dimension without pixelation.
Características principales de Generador de códigos QR
- Generate QR codes from text, URLs, email, phone, Wi-Fi
- Customizable colors (foreground and background)
- Adjustable size from small to poster-sized
- Error correction levels: Low, Medium, Quartile, High
- Download as PNG or SVG
- Instant generation in browser
- No data sent to servers
- Works on all devices
Cómo usar Generador de códigos QR
- Open the QR Code Generator on GuruAlpha.
- Select the QR code type (URL, Text, Email, Phone, Wi-Fi).
- Enter the content to encode.
- Customize colors, size and error correction level.
- Preview the QR code in real-time.
- Download as PNG or SVG.
- Scan with your phone camera to verify.
Consejos para usar Generador de códigos QR
- Use high error correction for QR codes that might be partially obscured.
- Ensure sufficient contrast between foreground and background colors.
- SVG format is best for print materials — it scales without pixelation.
- Always test your QR code by scanning it before printing or distributing.
- Wi-Fi QR codes eliminate the need to share passwords verbally.
Preguntas frecuentes sobre Generador de códigos QR
How much data can a QR code hold?
Up to 4,296 alphanumeric characters or 7,089 numeric characters. URLs and text messages are well within this limit.
Why does error correction matter?
Higher error correction allows the QR code to be read even if partially damaged, dirty or obscured. Use High for codes that will be printed on physical materials.
Can I customize the colors?
Yes. Choose foreground and background colors, but ensure sufficient contrast. Very low contrast may prevent reliable scanning.
What's the difference between PNG and SVG?
PNG is a raster format — good for digital use. SVG is vector — infinitely scalable without pixelation, ideal for print materials.