Was können Sie in einem QR-Code kodieren?
URL / Website
Any link — product pages, social profiles, landing pages, portfolios. Most common QR use case.
WiFi Password
Gäste scannen und verbinden sich sofort. Perfekt für Cafés, Hotels, Airbnb und Büros.
vCard / Contact
Name, phone, email, company, website — one scan saves the full contact. Replaces business cards.
Füllt Empfänger, Betreff und Nachricht aus. Einmal scannen, fertig.
Location
Öffnet direkt in Google Maps. Für Geschäftsadressen und Veranstaltungsorte.
Event
Erstellt eine Kalendereinladung. Scannen und direkt im Telefonkalender speichern.
Fehlerkorrektur — Das wichtige Feature
Jeder QR-Code hat eine Fehlerkorrektur-Stufe that determines how much damage it can sustain while still scanning. There are four levels — and choosing the right one matters more than most people realize.
| Level | Recovery | Code Size | Best For |
|---|---|---|---|
| L | 7% | Smallest | Saubere Innenräume, kleine QR-Codes |
| M | 15% | Medium | Allgemeine Verwendung — guter Standard |
| Q | 25% | Larger | Industrie, Außenbereich |
| H | 30% | Largest | QR-Codes mit Logo, raue Bedingungen |
Rule of thumb: use M for general use, H if you're adding a logo. The logo covers part of the code — higher error correction compensates for that.
Logo zum QR-Code hinzufügen
Enable "Add Logo" in the settings above and upload your PNG, JPG or SVG. A few things worth knowing before you print:
- Set error correction to H — allows 30% of the code to be covered while still scanning
- Keep the logo under 30% of the QR code area — larger logos prevent scanning
- Test before printing — click Validate above to confirm it scans correctly
- Simple logos work best — a clean icon scans better than a detailed photo
💡 Always validate before printing at scale. Click the Validate button above — it reads the QR code using your camera and shows the decoded value. If it scans in under 3 seconds, you're good to go.
Statische vs. dynamische QR-Codes
You may have seen services offering "dynamic QR codes" you can edit after printing. Here's what they don't tell you upfront:
- Dynamic QR codes route through the provider's redirect server — if they shut down, your codes stop working
- There are usually monthly fees after the free tier
- Your users' scan data is collected by the provider
The QR codes generated here are static — they directly encode your URL or data. They never expire, never depend on a third-party service, and work completely independently. For most use cases, that's exactly what you need.
✅ Static QR codes never expire. A code generated today will still work in 10 years, as long as the destination URL stays active. No subscriptions, no surprises.
QR-Code Größenempfehlungen
- Business card: 2×2cm minimum
- Product packaging: 2.5×2.5cm minimum
- Table tent / menu card: 4×4cm
- Poster or flyer: 5×5cm minimum
- Window sticker: 8×8cm or larger
Download as SVG for print — it scales to any size without pixelation.
Häufig gestellte Fragen
How do I create a QR code for free?
Use the generator at the top of this page — select content type, enter your data and download. Keine Anmeldung, no payment, no watermark.
Can I create a QR code for WiFi?
Yes. Select WiFi, enter your SSID, password and security type. Guests scan and connect instantly — no typing required.
Do QR codes expire?
Static QR codes generated here never expire. They directly encode your data — no third-party redirect service involved.
What error correction level should I use?
Level M for general use. Level H if you want to add a logo. Level L for the smallest possible QR code in clean conditions.
Can I add a logo to my QR code?
Yes. Enable Add Logo, upload your image, set error correction to H, and always validate before printing at scale.
QR-Code kostenlos erstellen
URL, WLAN, Visitenkarte, E-Mail — keine Anmeldung, kein Wasserzeichen.
⬆ Zurück zum Generator