What is QR code error correction and why does it matter?

QR code error correction is a feature that allows the code to remain readable even if it is partially damaged or covered by a logo. We offer different error correction levels so you can find the perfect balance between design complexity and scan reliability. For professional printing, you can download your codes in vector formats (SVG).

How do I convert a URL to a QR code for free?

Simply paste your link into the URL to QR code field. Our tool will instantly generate a high-quality code. We also support specialized payment QR codes (like Square or PayPal) to make transactions faster for your customers.

How do I make a WiFi password QR code?

To create a WiFi password QR code, simply select the WiFi icon in our tool, enter your network name (SSID) and password, and choose the encryption type. Once scanned, your guests can connect to your network instantly without typing a password.

Can I create a custom QR code with a logo?

Yes! Our custom QR code generator allows you to upload your brand logo or choose from various icons. You can also customize the dots, corners, and colors to match your brand identity. We even support transparent background QR codes for seamless integration into your graphic designs.

Can I create a digital business card (vCard) QR code?

You can use our digital business card QR code generator to share your contact details, including phone number, email, and social media links. It is the best digital business card solution for networking without physical paper.

How can I create a QR code for a calendar event?

You can easily create a qr code calendar event by selecting the calendar icon in our generator. Simply enter the event title, location, start and end times, and a short description. Once users scan the save the date qr code, the event details will automatically pop up on their smartphones, allowing them to add it to their Google Calendar, iCal, or Outlook with one tap.

QR Code Generator

The QR Code Generator is a versatile tool for creating professional QR codes with extensive design options. Transform text, URLs, contacts, WiFi data, and more into customizable QR codes that are perfect for marketing, branding, and practical applications.

Getting Started

Create QR codes with the QR Code Generator in four simple steps:

Step 1 - Choose Data Type: Click one of the icons at the top (Text, URL, Email, SMS, Phone, Geo, Event, Contact, or WiFi)
Step 2 - Enter Data: Fill in the input fields with your data (the preview updates in real-time)
Step 3 - Customize Design (Optional): Adjust colors, shapes, logos, and other design elements
Step 4 - Download: Choose your desired format (PNG, SVG, JPEG, or WebP) and download your QR code

💡 Tip: The QR code preview updates automatically as you enter your data. The semi-transparent display is a placeholder - once your data is complete, the actual QR code will be shown!

Main Features & Data Types

Text

Convert simple text, messages, or notes into a QR code.

Maximum Length: Up to 1700 bytes (approximately 1700 characters)
Use Cases: Ideal for notes, codes, messages, and general information
Size: Longer texts result in larger QR codes with higher error correction

URL

Create QR codes that link to websites - with automatic URL formatting.

Automatic Validation: The tool automatically checks if the URL is valid
Protocol Handling: URLs are automatically formatted with https:// if necessary
Use Cases: Perfect for marketing, business cards, and campaigns
QR Code Format: Uses standard URL format for maximum compatibility

Email

Create QR codes that open email clients with pre-filled data.

Email Address: Required - the recipient address
Subject: Optional - the email subject is automatically filled in
Message: Optional - the email body is pre-filled
Use Cases: Newsletter signup, feedback requests, contact forms

SMS

Create QR codes for SMS with phone number and optional pre-filled message.

Phone Number: Required - international format or local number
SMS Text: Optional - the message is automatically pre-filled
Format: SMS parameters are formatted as "sms:" URL
Use Cases: Mobile marketing, event registration, quick communication

Phone

Create QR codes to call a phone number.

Phone Number: Any format (automatically cleaned)
Use Cases: Business cards, business materials, customer service
Compatibility: Works automatically on any smartphone

Geo (Location)

Create QR codes with GPS coordinates that open mapping apps.

Latitude & Longitude: Decimal format (e.g., 49.0069, 8.4037 for Karlsruhe)
Maps Integration: Automatically opens Google Maps or the default maps app
Accuracy: Precise to decimal places (meter range)
Use Cases: Tourism, event venues, business locations, logistics

Event

Create QR codes for calendar events with complete event details.

Event Title: Required - the name of the event
Description: Optional - event details
Location: Optional - address or location description
Start & End Date: Optional - event time period
All-Day Event: Option for all-day events
Format: ICS (iCalendar) format - compatible with all calendar apps
Use Cases: Conferences, webinars, parties, business appointments

Contact

Create QR codes for business cards with complete contact information.

Name: First and last name
Title: Profession or position
Emails: Multiple email addresses with type (work, personal, etc.)
Phone Numbers: Multiple numbers with type
Format: VCard (.vcf) standard - universally compatible
Use Cases: Digital business cards, contact sharing, professional networks

WiFi

Create QR codes for WiFi connection with automatic network configuration.

SSID: Required - the WiFi network name
Password: Optional - the WiFi password (not displayed)
Automatic Connection: The smartphone connects automatically
Guest Networks: Perfect for restaurants, hotels, events
Use Cases: Hospitality, retail, business locations

EPC (SEPA Transfer)

Create QR codes for SEPA payments according to the EPC standard (European Payments Council).

IBAN: Required - The beneficiary's account number (e.g., DE89370400440532013000)
Beneficiary Name: Required - The name of the payment recipient (max. 70 characters)
BIC: Optional but recommended - The international bank code (8-11 characters)
Amount: Optional - Payment amount in EUR (0.01 to 999,999,999.99)
Format: BCD (Barcode Data) format according to EPC specification
Use Cases: Invoices, fundraising campaigns, B2B payments, e-commerce
Security: Payment data is encrypted within the QR code

Extensive Design Options

Size and Format

Adjust size and output format to your requirements:

Width & Height: Any size (100-500+ pixels)
Output Format: PNG, SVG, JPEG, or WebP
SVG Advantages: Scalable without quality loss, ideal for printing
PNG Advantages: Widely compatible, small file size

Dots (Points) Styling

Customize the appearance of QR code dots:

Color: Single color or gradient (linear/radial)
Shape Types: Square, Rounded, Circle, Classy, Extra Rounded
Gradient Rotation: Angle for gradient direction
Rounding: Degree of rounding for rounded dots

Corner Squares Styling

Design the characteristic corner squares of the QR code:

Independent Design: Different color and shape than regular dots
Format Types: Square, Extra Rounded, Classy
Gradient Support: Gradients for visual effect
Sync Design: Option to copy dots design to corners

Corner Dots Styling

Customize the small dots inside the corner squares:

Shape & Color: Independent from the rest of the code
Gradient Support: Custom gradients possible
Consistency: Option to sync with dots design

Background Styling

Customize your QR code background:

Single Color: Default white
Gradient: Linear or radial for visual effect
Transparency: Fully transparent background for PNG/WebP
Theme Adaptation: Automatic for dark/light mode

Logo Integration

Place a logo or image in the center of your QR code:

Logo Upload: JPG, PNG, or SVG images
Size & Position: Adjustable logo size (0-100%)
Error Correction: Logo overlays only a small area - QR code remains readable
Padding: Spacing around the logo
Hide Background: Hide background dots under the logo

Borders & Decorations

Add sophisticated borders and text decorations:

Main Border: Thickness, color, and stroke pattern (solid or dashed)
Inner Border: Additional border inside
Outer Border: Additional border outside
Text Decorations: Text above, below, left, or right of the code
Decoration Styling: Customize font, size, and color

ℹ️ Info: Borders and decorations should be subtle to not affect QR code readability. Light borders on dark codes work best!

Technical Details

QR Code Error Correction Level:

QR codes can be 7%, 15%, 25%, or 30% damaged and still be scannable

Error Correction Level = Determines how much of the code can be damaged | Type Number = Version of the QR code (1-40, higher = bigger)

Data Size & Capacity:

The maximum capacity is 1700 bytes. Longer data results in larger QR codes with higher resolution

Short URLs = up to 25 characters (small) | Normal text = up to 500 characters (medium) | Long text = up to 1700 characters (large)

File Format Recommendations:

PNG: Best compatibility, small, lossless - standard for web
SVG: Scalable without loss - ideal for printing and large formats
JPEG: Compressed, smaller files - good for emails
WebP: Modern, very small files - ideal for web and mobile

Use Cases

When is the QR Code Generator particularly useful?

Marketing & Advertising: Connect print media with online content and track campaigns
E-Commerce: QR codes in product listings or on packaging for quick access to details
Event Management: Tickets, registration, location, and WiFi connection
Hospitality & Restaurants: Menu access, WiFi connection, payment links
Business Cards & Networking: Digital contact information on modern business cards
Logistics & Tracking: Location, product information, and delivery status
Education & Training: Links to materials, online lectures, feedback forms
Branding & Authentication: Branded QR codes with logos and design elements

Tips & Best Practices

Mind the Minimum Size: QR codes should be at least 2x2 cm to scan reliably
Contrast is Key: Ensure the QR code has strong contrast from the background (dark dots on light background)
Keep Logo Size Small: Logos should not cover more than 20-30% of the QR code
Use SVG for Printing: Use SVG format for professional prints without quality loss
Leverage Error Correction: Higher error correction levels allow logos and damaged areas
Test Colors: Not all color combinations are readable - test with different scanners
Mobile Optimization: Ensure links are mobile-optimized
Use Borders Sparingly: They look nice but can affect readability
Version Compatibility: Let the tool automatically choose the best QR version
Test Before Printing: Scan your QR code with different devices and apps

Practical Examples

Marketing Campaign

Example: An advertisement for a new product with logo and text decoration

Setup: URL with logo, dark blue with white background, border with text "Shop Now"

Download: PNG for digital, SVG for print ads

WiFi Hotspot

Example: Restaurant WiFi quickly accessible for guests

Setup: WiFi type with SSID "RestaurantXY" and password, subtle design

Download: Printed on menu boards or tables

Event Registration

Example: Conference with ticket link and event information

Setup: URL type with ticket link + event data for calendar, professional design

Download: SVG for high-resolution printing on tickets

Digital Business Card

Example: Professional contact business card

Setup: Contact type with name, email, phone, minimalist black and white design

Download: PNG or SVG for printing on business cards

Tool Wizard

QR Code Cenerator

Frequently Asked Questions