QR Code Generator
Create QR codes for URLs, text, email, phone numbers, WiFi credentials, vCards, and locations. Customize foreground and background colors, then download as PNG or SVG.
How It Works
- Select the type of QR code you want to generate (URL, WiFi, vCard, etc.).
- Fill in the required fields for your chosen type.
- Customize the foreground and background colors if desired.
- Preview your QR code live and download it as PNG or SVG.
Understanding QR Codes
QR codes (Quick Response codes) were invented in 1994 by Denso Wave, a Japanese subsidiary of Toyota, to track automotive parts during manufacturing. Today they are used everywhere: restaurant menus, event tickets, business cards, product packaging, and contactless payments. A single QR code can store up to 4,296 alphanumeric characters or 7,089 numeric digits.
Unlike traditional barcodes that store data in one dimension, QR codes use a two-dimensional grid of black and white squares called modules. They include built-in error correction using Reed-Solomon codes, which means a QR code can still be scanned even if up to 30% of it is damaged or obscured. This makes them remarkably resilient for printed materials.
There are many types of data you can encode. URL codes redirect scanners to websites. WiFi codes let guests join your network without typing a password. vCard codes share contact information that can be saved directly to a phone. Email and phone codes create instant pre-filled messages or dial prompts. The versatility makes QR codes an essential tool for both personal and business use.
Tips & Best Practices
- ✓Use high contrast between the foreground and background colors for reliable scanning.
- ✓Always test your QR code with multiple scanning apps before printing.
- ✓For print materials, ensure the QR code is at least 2 cm x 2 cm (about 0.8 inches) for reliable scanning.
- ✓Use SVG format for print (scales without losing quality) and PNG for digital use.
- ✓WiFi QR codes are perfect for offices, cafes, and rental properties to let visitors connect instantly.
Frequently Asked Questions
Do QR codes expire?
Static QR codes like the ones generated here never expire. The data is encoded directly into the pattern of the code itself. As long as the content they point to (like a URL) remains active, the QR code will work indefinitely.
Can I customize the colors of my QR code?
Yes, our generator lets you choose custom foreground and background colors. Just make sure there is strong contrast between the two colors so scanners can read the code reliably. Dark foreground on light background works best.
What is the difference between PNG and SVG downloads?
PNG is a pixel-based image format, ideal for screens and digital sharing. SVG is a vector format that can be scaled to any size without losing quality, making it perfect for print materials like posters, flyers, and business cards.
Is my data secure when generating QR codes?
Absolutely. This tool runs entirely in your browser. No data is sent to any server. The QR code is generated on your device using JavaScript, so your URLs, WiFi passwords, and contact information remain completely private.