Use the free QuickToolz office tools — no signup, no install, works in your browser.
How to Use Free QR Code Generator
Step 1
Enter URL or text
Step 2
Customize style
Step 3
Preview QR code
Step 4
Download image
What Is a QR Code?
A QR code (Quick Response code) is a two-dimensional barcode that stores data — typically a URL, text, contact information, or Wi-Fi credentials — that smartphones can scan and decode instantly using their camera. QR codes became ubiquitous for contactless menus, payments, event check-ins, and marketing campaigns.
How to Generate a QR Code Online
- Enter your URL or text — a website link, plain text, phone number, or any data you want encoded.
- Customize the style — choose size and color if needed.
- Preview your QR code to confirm it looks correct.
- Download the image as PNG for use in print or digital materials.
What Can a QR Code Store?
URLs: The most common use — scan to open a website instantly.
Plain text: Store a short message, instructions, or information.
Phone numbers: Scan to call a number directly.
Email addresses: Scan to open a compose window pre-filled with the recipient.
Wi-Fi credentials: Scan to connect to a Wi-Fi network without typing the password.
vCard contact info: Scan to save a contact to your phone’s address book.
SMS: Scan to open a pre-filled text message.
QR Code Size and Print Quality
For print use, download QR codes at the highest available resolution. A QR code printed at less than 2cm × 2cm may be difficult for phones to scan reliably. For digital use on screens, 300px × 300px is sufficient. Always test your QR code with multiple phone cameras before printing at scale.
Static vs Dynamic QR Codes
A static QR code encodes the destination directly in the pattern — the URL cannot be changed after generation. A dynamic QR code redirects through a short URL that can be updated later without regenerating the code. QuickToolz generates static QR codes, which are free and permanent. Dynamic codes require a paid QR service subscription.
Best Practices for QR Codes
Always include a call-to-action near the QR code explaining what it does (“Scan to visit our menu”). Use a URL shortener before encoding long URLs to keep the QR pattern simple and easier to scan. Test on multiple devices before publishing. Add sufficient quiet zone (white space border) around the QR code in print layouts.
Frequently Asked Questions
Do QR codes expire? Static QR codes never expire — as long as the destination URL remains active, the code works forever.
How much data can a QR code store? Up to 4,296 alphanumeric characters. For URLs, shorter is better for scan reliability.
Can I add a logo to the center of the QR code? QR codes have built-in error correction that allows up to 30% of the pattern to be obscured. A logo covering less than 30% of the center still scans correctly.