# QRgenie > QRgenie is a free, browser-based QR code generator at https://runtime-hub.com/qr-code-generator/. It creates customizable static QR codes from URLs and text, with PNG and SVG downloads. QR payload generation runs locally in the browser. The entered URL or text is not sent to a QR-generation backend. QRgenie is part of RuntimeHub. ## Primary resources - [QRgenie QR code generator](https://runtime-hub.com/qr-code-generator/): create and customize a QR code. - [Generator controls](https://runtime-hub.com/qr-code-generator/#tool): enter a URL or text and configure export options. - [How it works](https://runtime-hub.com/qr-code-generator/#how-title): create, customize and download a code. - [Features](https://runtime-hub.com/qr-code-generator/#why-title): local generation, exports, colors and error correction. - [Use cases](https://runtime-hub.com/qr-code-generator/#who-title): menus, campaigns, event check-in, classroom links and Wi-Fi access. - [QR design tips](https://runtime-hub.com/qr-code-generator/#guide-title): contrast, quiet zone, shorter destinations and scan testing. - [Frequently asked questions](https://runtime-hub.com/qr-code-generator/#faq-title): static codes, export formats, print sizing and scanning. - [RuntimeHub](https://runtime-hub.com/): main hub for browser-based tools. ## Capabilities - Export formats: PNG and SVG. - PNG export sizes: 256, 512, 1024 and 2048 pixels. - Customization: foreground and background colors, square or rounded modules, error correction levels L, M, Q and H. - Transparent background: available for PNG exports. - Maximum input length: 1,500 characters in the interface; practical capacity depends on the content and error-correction level. - Supported content: URLs, plain text, phone numbers, email links, SMS text and Wi-Fi payload strings. ## Important limitations and usage guidance - QRgenie creates static QR codes. The encoded content cannot be edited after export; use a URL you control if you need to change the destination later. - QRgenie does not provide dynamic redirects or scan analytics. - Use a dark foreground on a light background, preserve the clear margin around the code, and test the exported design at its final display or print size. - The PNG size setting controls pixel resolution, not the physical dimensions on paper. SVG is suitable when a scalable vector export is useful. - Transparent backgrounds are supported for PNG; keep the final background high-contrast and test scanning after placing the code into artwork.