Kostenloser QR-Code-Generator — QR-Codes für URL, WLAN & Text | Cruse
Erstellen Sie benutzerdefinierte QR-Codes für Webseiten, WLAN-Zugänge und Texte. Kostenloser Download in hoher Auflösung als PNG und Vektor-SVG.
So verwenden Sie dieses Tool
Select Content Type
Choose whether you want to encode a Website URL, Wi-Fi Network credentials, Plain Text, Email, Phone/SMS, or a digital vCard contact.
Enter Your Information
Fill in the corresponding fields. For Wi-Fi, enter your SSID and password; for URLs, enter the complete web address with https://.
Customize Design & Error Correction
Select your preferred foreground and background colors, adjust the margin (quiet zone), and pick an Error Correction Level (L, M, Q, or H).
Download Vector SVG or High-Res PNG
Instantly download a vector SVG for high-end professional printing and product packaging, or a 1200x1200px PNG for digital screens.
Technische Referenz & Spezifikationen
| Parameter / Standard | Specification |
|---|---|
| Supported QR Types | Website URLs, Wi-Fi Networks, Plain Text, Email (mailto), SMS, Phone (tel), vCard 3.0 |
| Error Correction Levels | L (7% recovery), M (15% standard), Q (25% high), H (30% ultra/industrial) |
| Export Formats | Scalable Vector SVG, High-Res PNG (1200×1200px), Clipboard Image Copy, Direct Print |
| Color Customization | Hex foreground & background color picking with high-contrast accessibility presets |
| Quiet Zone Margin | Customizable 0, 1, 2, or 4 module safety border for scanner legibility |
| Client Privacy | 100% In-Browser. No URLs, Wi-Fi passwords, or contact data are ever sent to external servers. |
Häufig gestellte Fragen
How do Wi-Fi QR codes work when scanned by a phone?
Wi-Fi QR codes use the standard `WIFI:T:WPA;S:NetworkName;P:Password;;` protocol recognized natively by iOS (Camera app) and Android. When scanned, the smartphone automatically prompts the user: "Join this network?" and connects without manually typing lengthy passwords.
What is the best Error Correction Level for printed QR codes?
For standard flyers and digital screens, Level M (15%) is optimal. If printing on outdoor posters, restaurant tables, vehicles, or placing a logo in the center of the code, choose Level H (30%), which allows the code to scan even if up to 30% of the surface is damaged or obstructed.
What is the minimum recommended print size for a QR code?
For handouts, brochures, and business cards scanned from arm's length (30–40 cm), the minimum recommended size is 2 × 2 cm (0.8 × 0.8 inches). For posters and banners scanned from 2–3 meters away, the QR code should be at least 15–20 cm wide.
Can I download an SVG vector QR code for professional graphic design?
Yes. Click "Download SVG" to get an infinite-resolution vector file. Vector SVGs never lose sharpness, making them suitable for billboard banners, laser engraving, merchandise, and Adobe Illustrator/Figma workflows.
Do these QR codes ever expire?
Never. These are pure static QR codes where the data is encoded directly into the pixel pattern. Unlike paid subscription services that route through redirect links, these QR codes work permanently with zero monthly fees or expiration.
Ähnliche kostenlose Tools
Alle Tools anzeigenBerechnen Sie Ihren Body-Mass-Index (BMI) nach Richtlinien der WHO mit visueller Farbskala und Angabe des Normalgewichtsbereichs.
Ermitteln Sie Ihren Grundumsatz (BMR) und Gesamtenergiebedarf (TDEE) zur Gewichtsabnahme, Gewichtserhaltung oder zum Muskelaufbau.
Berechnen Sie, wie viele Liter und Gläser Wasser Sie täglich basierend auf Ihrem Körpergewicht, Ihrer Aktivität und dem Wetter trinken sollten.