/
Generate QR codes from any URL or text. Processing is 100% local — no internet access required.
The KaruviLab QR Code Generator is a versatile, browser-native tool that lets you create high-quality QR codes for a wide variety of use cases. Whether you need to encode a complex URL for marketing materials, generate a vCard for seamless contact sharing, or create a quick-connect QR code for your guest Wi-Fi, our tool provides total control and reliability.
Because this generator operates entirely within your browser, your data remains completely private. When you generate a QR code for sensitive information—such as Wi-Fi credentials or private text—none of that data is ever sent to or processed by a remote server. You can generate unlimited codes with the peace of mind that your input remains exclusively on your device.
We provide advanced customization options to ensure your QR codes are both functional and visually appealing. Adjust the size, select the appropriate error correction level to ensure readability even when printed or damaged, and choose custom colors to align with your personal brand or business identity. Once you are satisfied with your design, you can download your code in high-resolution PNG or vector-based SVG formats for professional print projects.
Input
URL: https://karuvilab.comOutput
[Dynamic QR Code Graphic]Input
Wi-Fi: Network=Guest, Pass=secret123Output
[Dynamic Wi-Fi QR Code Graphic]Error correction allows QR codes to be scanned successfully even if the image is partially damaged or obscured. Level L (7%) is best for simple data; Level H (30%) is much more robust for printed materials but produces a more complex (denser) visual pattern.
A standard QR code can hold approximately 4,296 alphanumeric characters. Note that the more data you add, the 'denser' the resulting code becomes, which may require it to be printed at a larger size for reliable scanning.
SVG is a vector format. It remains perfectly crisp regardless of how much you scale it up or down, making it the superior choice for high-quality printing on business cards, brochures, or posters.
Yes. Your Wi-Fi network name and password are never transmitted over the network. They are converted into code entirely locally on your computer.