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QR Code Generator
Create QR codes online for free – for links, Wi-Fi access, contact details or SEPA bank transfers. Download them as PNG, SVG or PDF.
Open the generator →
What is a QR code?
The QR code is a two-dimensional matrix code that stores text, links, WiFi credentials or payment data (SEPA/GiroCode) and is read by any smartphone camera in seconds.
With four selectable error-correction levels a QR code stays readable even when partly covered or damaged – ideal for packaging, posters, menus and displays.
Technical details
- Category
- 2D matrix code
- Data & character set
- text, URLs, digits, binary, WiFi, SEPA/GiroCode
- Capacity
- up to ~4,296 alphanumeric or ~7,089 numeric characters
- Check / error correction
- four error-correction levels (L, M, Q, H – up to 30 % recovery)
- Norm / standard
- ISO/IEC 18004
- Size & printing
- from ~2 × 2 cm, quiet zone of 4 modules recommended
- Good to know
- Higher error correction makes the code more robust but denser – choose level Q or H when adding a logo or for stickers.
Compared to related codes
| Code | Category | Data & character set |
|---|---|---|
| QR code | 2D matrix code | text, URLs, digits, binary, WiFi, SEPA/GiroCode |
| barcode | 1D linear barcode | full ASCII set (128 characters: digits, upper/lowercase, symbols) |
| EAN-13 barcode | 1D retail barcode | 13 digits (GTIN-13) |
This helps you pick the right code type for your use case faster.
How to create a QR code
- The type “QR code” is preselected – you can change it anytime in the generator.
- Enter your value (example: https://example.com).
- Adjust colors, module size and the quiet zone and check the live preview.
- Download the QR code as PNG, SVG or PDF, or print an A4 label sheet.
Use cases
- Website links and campaigns
- Wi-Fi access to scan
- Business cards and contact data
- SEPA bank transfers (GiroCode)
Tips for clean printing & scanning
- Keep contrast (dark modules on a light background) and test with several camera apps.
- Leave a quiet zone all around – at least four modules for QR codes.
- On small surfaces prefer 2D codes: they store more data in less space.
Features
- Free and no sign-up
- Instant live preview
- Export as PNG, SVG and PDF
- Customizable colors, size and caption
- Batch generation & A4 label printing
- Works on desktop and mobile
FAQ
- How do I create a QR code?
- Choose the type, enter your value (e.g. https://example.com), adjust the design and download the QR code as PNG, SVG or PDF.
- What is a QR code used for?
- Typical use cases are Website links and campaigns, Wi-Fi access to scan, Business cards and contact data, SEPA bank transfers (GiroCode).
- What is an example value for a QR code?
- A valid example is “https://example.com”. Just enter your own value and the QR code is generated instantly in the preview.
- Is the QR Code Generator free?
- Yes. Barcode Studio is completely free and requires no sign-up.
- Which download formats are available?
- You can export as PNG, SVG or PDF and print directly.
- Does it work on mobile?
- Yes, Barcode Studio runs in any modern browser on desktop and mobile.
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