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Rechnerpilot tool

QR Code Generator

Create free static QR codes for links, Wi-Fi and contacts. Add a logo, check readability live and download PNG, SVG or PDF. Your data stays on your device.

Generators
Your content. Your design. Ready to scan.Static · no expiry date
◇ Your data stays on your device.
01

Content

* Required field

Link / URL

02

Design

Presets
Colors
Outer eyes / Inner eyes
Logo

PNG, JPEG or WebP · max. 2 MB · 16–4096 px. Processed locally; SVG is not accepted.

The subtle Rechnerpilot wordmark stays outside the QR code.

Advanced

L: small reserve (~7%). M: everyday (~15%). Q: more reserve (~25%). H: highest reserve (~30%). These refer to damaged codewords, not a guaranteed area you can cover. Logos always use H.

Your data stays on your device.

Explanation

How QR Code Generator works

What is a QR code?

A QR code stores text in a two-dimensional pattern. A smartphone camera reads it and offers an action based on the content: open a link, save a contact or connect to Wi-Fi.

Static or dynamic?

A static QR code contains data directly. It does not expire and works independently of Rechnerpilot. The linked destination must remain available. A dynamic QR code uses a managed link whose destination can change; analytics and routing need a server. This tool creates static codes only.

Understanding error correction

L, M, Q and H determine how many damaged codewords can be restored. Higher levels need more modules and make the code denser. Percentages do not mean you can cover arbitrary large areas with a logo. Our scan check decodes the finished image and compares the content.

Printing QR codes correctly

SVG is best for professional print: sharp at every size. Leave at least four modules clear on every side. Use dark modules on light paper, print dense codes larger and test the final print with several smartphones. Material, light and distance affect scanning; the browser check cannot replace this real-world test.

Privacy and safety

QR generation, logo processing and scan checks run on your device. Inputs are not uploaded or saved in share links or browser storage. QR codes are not encryption: Wi-Fi passwords and contacts can be read from the export. Check unfamiliar link destinations before opening.

Practice

Practical examples

Choose the right content

Wi-Fi codes simplify network access; vCard codes share contact details. Email, phone, SMS, WhatsApp, calendar and location open a suitable app, depending on the device. PDF and app codes are public links. GiroCode supports SEPA transfers in compatible banking apps.

QR code with a logo

A small logo makes the code recognizable. We automatically use H correction and protect fixed QR patterns. Your image is processed locally. The subtle Rechnerpilot wordmark stays outside the quiet zone without redirecting your content.

FAQ

Frequently asked questions

Is this QR code generator free?

Yes. All offered content types, designs and downloads are free. The subtle Rechnerpilot wordmark remains in the export; there are no artificial redirects or paywalls.

Will my QR codes expire?

A static QR code contains data directly. It does not expire and works independently of Rechnerpilot. The linked destination must remain available. A dynamic QR code uses a managed link whose destination can change; analytics and routing need a server. This tool creates static codes only.

Can I create a QR code with my own logo?

A small logo makes the code recognizable. We automatically use H correction and protect fixed QR patterns. Your image is processed locally. The subtle Rechnerpilot wordmark stays outside the quiet zone without redirecting your content.

Which format is best for print?

SVG is best for professional print: sharp at every size. Leave at least four modules clear on every side. Use dark modules on light paper, print dense codes larger and test the final print with several smartphones. Material, light and distance affect scanning; the browser check cannot replace this real-world test.

Is my Wi-Fi password uploaded?

QR generation, logo processing and scan checks run on your device. Inputs are not uploaded or saved in share links or browser storage. QR codes are not encryption: Wi-Fi passwords and contacts can be read from the export. Check unfamiliar link destinations before opening.

Can I store a PDF file directly in a QR code?

Link a publicly accessible PDF. The document itself is not embedded.

Tips

Good to know

  • Width of the entire export. Below about 0.4 mm per module, we recommend a larger print. Always test on the actual material.
  • Use on a light background only. Scan check simulates white.
  • Anyone with access to this QR code can read the Wi-Fi password.

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