0qr.app — Free QR Code Generator

What it does

I got tired of QR generators with ads, signups, and servers storing my data. So I built the simplest alternative: one HTML file, no backend, no tracking. Everything happens in your browser — WiFi passwords, contacts, URLs never leave your device. Supports 8 QR types. Download as PNG. Free forever. Open source.

Free, instant QR codes. URL, WiFi, vCard, WhatsApp, Email, SMS. No ads, no sign-up, no tracking. 100% in your browser.

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