About the QR Code Generator

The QR Code Generator creates a scannable QR code from any text or URL you enter. You can set the size and colours and download the result as a PNG image for print or screen.

Generation happens through a third-party rendering service that draws the code from your content, so the text you encode is sent in the request URL — avoid encoding sensitive data. The image is static, with no click-tracking.

The generator produces a static QR image: it encodes whatever text or URL you enter directly into the code, with no click-tracking or redirect layer. That means the destination cannot be changed after the code is printed — to update where a code points later, encode a link you control and redirect it, rather than the final URL. For print, generate at 512×512 or larger and leave a white margin (the quiet zone) around the code so scanners can read it reliably at small sizes. Because the content is sent to a third-party rendering service in the request URL, avoid encoding sensitive personal data.

How to use the QR Code Generator

1. 1Open the QR Code Generator.
2. 2Enter the URL or text to encode.
3. 3Choose the size and colours.
4. 4Click Generate and download the PNG.

How the QR Code Generator works

For the QR Code Generator specifically, it creates a scannable QR code from any text or URL you enter. QR and barcode tools render codes through third-party rendering services, with one local exception. The content you encode — a URL, WiFi credentials, contact details, or product data — is sent to that service in the request URL, and the server draws the code and returns a static PNG image. QR codes encode data in a two-dimensional matrix of black modules with built-in error-correction redundancy, so a slightly damaged code still scans. 1D barcodes encode data as parallel bars of varying width: Code128 supports all 128 ASCII characters, Code39 supports uppercase letters and digits, EAN-13 requires exactly 13 numeric digits (including a check digit), and UPC-A requires exactly 12. Each format has its own character set and check-digit rules, so the wrong length or characters produce a code that will not scan. The decoders are different from the generators: they read an uploaded image locally in the browser using a barcode-reading library, so the image never leaves your device. Clear, well-lit, high-contrast, horizontal images decode most reliably; damaged, blurry, or angled codes may fail. Generated codes are static images with no click-tracking or redirect layer, so the destination cannot be changed after printing — to update where a code points later, encode a link you control and redirect it. For print, generate at 512×512 or larger and leave a white margin (the quiet zone) around the code so scanners can read it reliably at small sizes. Because content travels in the request URL, avoid encoding sensitive personal data.

How this tool handles your data. QR and barcode images are rendered by third-party rendering services. The content you encode (URL, WiFi password, or contact details) is sent to that service in the request URL so it can draw your code, so avoid encoding sensitive personal data. The decoders read uploaded images locally in your browser. Generated codes are static PNG images with no click-tracking.

Supported formats & limitations. EAN-13 requires exactly 13 digits and UPC-A exactly 12 digits, including the check digit. Code39 supports uppercase letters, digits, and a small symbol set; Code128 supports all ASCII characters. The QR decoder reads QR codes only — use the Barcode Decoder for 1D barcodes. Damaged, blurry, or low-contrast codes may fail to decode.

Practical workflow. In practice, you work through a short sequence: 1. Open the QR Code Generator 2. Enter the URL or text to encode 3. Choose the size and colours 4. Click Generate and download the PNG. It is well suited to linking print materials and posters to a website; sharing a URL on a business card; encoding short text or contact details.

Best practice. Use a dark code on a light background, generate at 512×512 or larger for print, and leave a white margin (the quiet zone) around the code so scanners can read it reliably.

Tips & common pitfalls. With the QR Code Generator in particular, linking print materials and posters to a website. Use a dark code on a light background, generate at 512×512 or larger for print, and leave a white margin (the quiet zone) around the code so scanners can read it reliably at small sizes. Because the content you encode is sent to a third-party rendering service in the request URL, avoid encoding sensitive personal data. Generated codes are static images with no click-tracking, so the destination cannot be changed after printing — to update a code later, encode a link you control and redirect it. Use the correct format for your data.

Troubleshooting

The first thing to know about the QR Code Generator: generate at 512×512 or larger so the code stays sharp when scaled down, and leave a white margin (quiet zone) around it. If a generated code will not scan, regenerate at 512×512 or larger, use a dark code on a light background, and leave a white margin (quiet zone) around it. If EAN-13 or UPC-A is rejected, you entered the wrong digit count — EAN-13 needs exactly 13 digits and UPC-A exactly 12, including the check digit. If Code39 will not scan, convert text to uppercase first; it does not support lowercase. If the decoder fails, crop tightly to just the code, ensure it is horizontal and well-lit, and increase contrast. Because the content you encode is sent to a third-party rendering service in the request URL, avoid encoding sensitive personal data.

Common use cases

• Linking print materials and posters to a website.
• Sharing a URL on a business card.
• Encoding short text or contact details.

Frequently asked questions

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