Free QR Code Generator — 100% Private

What Types of QR Codes Can You Create?

QR codes encode data in a two-dimensional barcode that smartphones can scan instantly. The most common type is a URL QR code — scan it and the browser opens a website. But QR codes can encode much more: contact cards (vCard format), WiFi credentials, email addresses with prefilled subject and body, phone numbers, and plain text. Each type uses a specific encoding standard that smartphones recognize automatically, triggering the appropriate action — opening a browser, adding a contact, connecting to WiFi, or composing an email.

Contact QR codes are particularly useful for business cards and events — instead of typing contact details manually, scanning the QR code adds the person directly to the phone's address book with all fields populated: name, company, job title, phone numbers, email, website, and full address. WiFi QR codes eliminate the need to share passwords verbally or write them down — guests scan the code and connect automatically. This works on both Android and iOS, supporting WPA/WPA2 and WEP encryption as well as open networks.

How to Use QR Codes for Business

QR codes have become an essential tool for bridging offline and online experiences. Restaurants use them for digital menus — print a QR code on table cards and customers scan to view the full menu on their phones, eliminating printing costs and allowing instant updates. Real estate agents place QR codes on property listings and yard signs, linking to virtual tours, floor plans, and detailed property information that won't fit on a printed flyer.

Event organizers use QR codes for check-in and ticketing — attendees scan their QR ticket at the door for instant verification, no paper tickets needed. Marketing teams print QR codes on packaging, brochures, posters, and product labels to drive traffic to landing pages, promotional offers, or product registration forms. Retail stores use them for contactless payments, loyalty programs, and product information. Business cards with vCard QR codes ensure contacts are saved accurately without manual typing errors.

For tracking QR code performance, combine this generator with our Campaign URL Builder to add UTM parameters before encoding. This way, every scan is tracked in your analytics dashboard — you can see exactly how many people scanned each QR code, from which location, and what they did on your site afterward. Use our Speed Test to ensure the landing page loads fast on mobile devices, since most QR scans happen on smartphones.

Static vs Dynamic QR Codes — What You Need to Know

There are two fundamentally different approaches to QR codes: static and dynamic. Static QR codes encode data directly — the URL, contact information, or WiFi credentials are embedded in the QR pattern itself. Once generated, the content cannot be changed. Dynamic QR codes, on the other hand, encode a short redirect URL that points to a server, which then forwards the user to the final destination. The redirect destination can be changed at any time without reprinting the QR code.

Dynamic QR codes sound convenient, but they come with significant privacy and reliability concerns. Every scan goes through a third-party server that logs the scan time, location, device type, and IP address. If the QR code service goes offline or shuts down, all your printed QR codes stop working. You are also dependent on the service's pricing — many providers start free but charge for scan analytics or after hitting scan limits.

The EuroMetrics QR Code Generator creates static QR codes exclusively. Your data is encoded directly in the QR pattern with zero server dependency. The codes work forever, scan instantly without redirect delays, and no third party can track your users' scans. For businesses that need scan analytics without compromising user privacy, we recommend combining static QR codes with UTM-tagged URLs and cookieless analytics — this gives you accurate traffic data without any third-party tracking infrastructure.

Why Privacy Matters in QR Code Generators

Most popular QR code generators process your data on their servers. When you enter a URL, contact details, or WiFi password, that information is transmitted to the service's backend to generate the QR image. This means the service can log, store, and analyze everything you encode — your URLs, your contacts' phone numbers, your WiFi passwords. Some services even inject tracking pixels or redirect URLs to monitor every scan.

The EuroMetrics QR Code Generator works differently. QR codes are generated entirely in your browser using JavaScript. No data is sent to any server — not even to ours. We have zero knowledge of what you encode. The QR generation library runs locally in your browser's memory, and all processing happens on your device. This makes it the only QR code generator suitable for encoding sensitive information like WiFi passwords, internal company URLs, confidential contact details, or proprietary product links. Your data stays yours.

Tips for Better QR Codes

Keep the encoded data short — shorter data produces simpler QR codes that scan faster and from greater distances. A URL with 20 characters creates a much cleaner QR code than one with 200 characters. Use our URL Shortener for long links before encoding them. When adding a logo, the tool automatically switches to High error correction to ensure the code remains scannable despite the logo covering part of the pattern. Test your QR code with multiple devices before printing — try both iPhone and Android, in different lighting conditions.

For print materials, export as SVG for infinite scalability without quality loss, or use the XL PNG size (1200px) for high-resolution printing. Maintain sufficient contrast between foreground and background colors — dark on light works best. Avoid inverting colors (light code on dark background) as some older scanners struggle with this. The minimum recommended print size is 2x2 cm for close-range scanning (menus, business cards) and 10x10 cm for distance scanning (posters, signage). Always include a short call-to-action near the QR code telling people what they will get when they scan it.