QR Code Types Explained
Not all QR codes are created equal. The type you need depends on what you want the scanner to do:
- URL QR — opens a website. The most common type, used on packaging, posters, and business cards.
- WiFi QR — connects the phone to a network automatically. No password typing, no telling customers the network name.
- vCard QR — saves your contact details straight to the phone's address book. The digital replacement for handing over a paper card.
- Event QR — adds an event to the phone's calendar with a single scan.
- Payment QR — encodes SEPA, UPI, or crypto wallet details for fast payments.
- Plain text QR — encodes any snippet of text, useful for Wi-Fi setup instructions or short notes.
Static QR codes (what free generators make) encode the data directly. Dynamic QR codes — which let you change the destination after printing and track scans — require a paid service. For 95% of use cases, a static QR code is all you need, and it works forever with no subscription.
Free QR Generator Comparison
| Generator | Signup? | Uploads Data? | Export Quality | Types | Watermark |
|---|---|---|---|---|---|
| iluv.tools QR Suite | No | No — local | High-res PNG/SVG | 10+ | None |
| QR Code Monkey | No | No | High-res | Basic | None |
| The QR Code Generator | No | Yes | Medium | Basic | None |
| QRStuff | No | Yes | Medium | 10+ | Optional |
| GoQR.me | No | Yes | Low | Basic | None |
| Unitag | Optional | Yes | Medium | 10+ | On free tier |
| Scanova | Yes | Yes | High | 10+ | On free tier |
| Canva | Yes | Yes | High | Basic | None |
| Bitly | Yes | Yes | Medium | URL only | None |
| QRFY | No | Yes | Low | Basic | None |
Why Browser-Based Generation Is Safer
A QR code is a container for data — and that data can be sensitive. A WiFi QR code contains your network password. A vCard contains your phone number, email, and address. A SEPA or crypto QR contains payment details.
Many online generators require you to paste this information into a web form, which sends it to their server. What happens to it after that is their policy, not yours. A browser-based generator flips the model: the QR code is computed locally using a JavaScript library, and your data never leaves the page. That means:
- No account means no password database to leak.
- No upload means no server-side logs, retention policies, or breach exposure.
- No tracking means no analytics pixel recording that you generated a payment QR at 3 PM.
This is the same privacy-first approach behind our no-signup QR guide and the broader QR generator comparison we published earlier.
WiFi QR Codes: The Killer Feature
The single most useful QR code for most people is the WiFi QR generator. Instead of telling a guest "the password is C-a-p-t-i-v-a-t-e-0-8", you print a QR code and they scan it. The phone connects to the network automatically — no typos, no case-sensitivity mistakes, no holding the phone up to read tiny text.
To make one, you enter the network name (SSID), the password, and the security type (WPA2, WPA3, or open). The generator produces a QR that encodes the connection details. Everything stays local — the password is embedded in the QR pattern itself, and nothing is uploaded.
Where to use it: printed on a café counter card, stuck to an office whiteboard, added to an Airbnb welcome packet, or displayed on a tablet at a hotel front desk. Pair it with a vCard QR for contact sharing and a calendar event QR for bookings, and you have a complete touchless guest experience. Learn more in our WiFi QR for business guide.
Business Use Cases: Restaurants, Events, Networking
Restaurants and cafés
Print a WiFi QR at the counter and a Google Review QR on every receipt. One connects guests to the network, the other turns satisfied customers into reviews with a single scan. No app, no signup.
Events and workshops
Generate an event QR that adds the session to attendees' calendars the moment they scan it, then follow up with a URL QR linking to slides. For larger operations, the bulk QR generator creates hundreds of unique codes for badges or tickets in one pass.
Networking
Add a vCard QR to your name badge or business card so contacts save your details instead of typing them. This is the modern version of the paper business card — see our digital business card guide for the full setup.
Frequently Asked Questions
Are free QR code generators really free?
Yes, for static QR codes. The catch is hidden elsewhere — account walls, watermarks, low export resolution, or data collection. A browser-based generator with no account, no upload, and high-res export is free with no strings attached.
Do I need a dynamic (paid) QR code?
Only if you must edit the destination after printing or need scan analytics. For WiFi, contact, event, and most URL use cases, a static QR code works permanently and costs nothing.
Is my WiFi password exposed when I generate a WiFi QR?
On a browser-based generator, no — the password is processed locally and only the QR pattern (which encodes the password) is produced. Avoid paste-to-web generators for anything sensitive.
What resolution should I export for print?
For print, export at least 1000×1000 px or use vector SVG. A 2 cm QR code on a business card needs roughly 300 DPI to scan reliably.
Can I add a logo to a QR code?
Yes, but it reduces error-correction headroom, which raises scan failure risk. Keep the logo small and centered, and always test the printed result with a phone before mass production.
Generate a free QR code now — no signup, no upload, no watermark.
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