How to Use the QR Code Generator
- Choose a data type: URL, Text, Email, Phone, or Wi-Fi.
- Fill in the relevant fields (e.g. a URL, or a Wi-Fi network name and password).
- The QR code preview updates instantly as you type.
- Click "Download PNG" to save the QR code as an image.
How QR codes work, at a high level
A QR (Quick Response) code encodes data as a grid of black and white squares following a published, standardized pattern. Scanning software locates the three distinctive corner squares to orient the code, then reads the grid pattern to reconstruct the original data — including built-in error correction so the code can still be read even if it's partially damaged, dirty, or obscured.
Common uses
QR codes are used for quickly sharing a URL without typing it, connecting to Wi-Fi without manually entering a password, sharing contact information, linking physical print materials (menus, posters, packaging) to a digital destination, and two-factor authentication setup.
Safety tips when scanning unknown QR codes
Because a QR code's content isn't visible to the human eye before scanning, be cautious scanning codes from untrusted sources like an unfamiliar sticker placed over a legitimate one. Check the destination URL your scanner shows before opening it, and be wary of QR codes urging you to log in or enter payment details.
Example
https://example.com
[QR code image scannable by any smartphone camera]
Tips
- Test your generated QR code with your own phone camera before printing or publishing it widely.
- Keep the encoded data reasonably short — very long text produces a denser, harder-to-scan code.
Frequently Asked Questions
Is my data uploaded to generate the QR code?
No, the QR code is generated entirely in your browser using JavaScript — nothing is sent to a server.
Is it safe to scan any QR code I see?
Not necessarily. Treat unfamiliar QR codes the way you'd treat an unfamiliar link — check the destination before entering any information.
Can I put a Wi-Fi password directly into a QR code?
Yes, the Wi-Fi option encodes your network name and password into a standard format most phone cameras can read to join the network automatically — but only share that QR code with people you trust with your network access.