QR Code Generator
Generate QR codes from text or URLs instantly.
How to use the QR Code Generator
QR codes can encode any text or URL into a scannable image. This tool generates a QR code instantly and lets you download it as a PNG for use in print, presentations, or digital materials.
- 1
Enter text or a URL
Type or paste the content you want to encode. You can use a website URL, plain text, a phone number, Wi-Fi credentials, or even a short JSON string.
- 2
Click "Generate QR Code"
The QR code image renders immediately below the button. You can also press Ctrl+Enter in the text area to generate quickly.
- 3
Download or use the image
Click "Download QR Code" to save the PNG file to your device, or take a screenshot to share it immediately via messaging or email.
Frequently asked questions
What is a QR code?
QR (Quick Response) code is a 2D barcode that can store text, URLs, contact information, and more. It was invented by Denso Wave in 1994 and is now universally readable by smartphone cameras without any special app.
How are QR codes different from traditional barcodes?
Traditional barcodes are one-dimensional and typically store a number up to about 20 digits. QR codes are two-dimensional and can store up to around 4,000 alphanumeric characters including URLs, contact info, and binary data.
What can a QR code store?
URLs (most common), plain text, Wi-Fi credentials (WIFI:T:WPA;S:MyNetwork;P:password;;), vCard contact information, SMS messages, phone numbers, geographic coordinates, and email addresses are all common uses.
What is error correction in QR codes?
QR codes have built-in error correction at four levels (L, M, Q, H). Higher correction levels allow the code to be scanned even if up to 30% of it is obscured or damaged — making them ideal for printed materials that might smudge or tear.
What size should a QR code be for printing?
For reliable scanning at arm's length, print QR codes at least 2.5 × 2.5 cm (about 1 inch square). For large-format prints or posters, scale proportionally. Always ensure high contrast — black on white is ideal.
Should I shorten URLs before encoding?
Shorter URLs produce simpler, less dense QR codes that are easier and faster to scan. Using a URL shortener like Bit.ly or your own branded short domain is good practice, especially for print materials.