QR Code Generator
Generate QR codes from any text or URL — customize error correction and size. All in your browser.
Click Generate to create a QR code.
Why Use DiffMergy’s QR Code Generator?
DiffMergy’s QR Code Generator creates high-resolution QR codes from any text or URL with customizable size, error correction level, and foreground/background colors. The generated QR codes are downloadable as optimized PNG images ready for print or digital use.
Unlike online QR generators that send your data to external APIs, all QR code generation happens locally in your browser. Your URLs and data stay completely private.
100% Private — No Server Upload
All processing happens entirely in your browser using Web Workers and modern browser APIs. Your sensitive source code, credentials, and files never leave your device — no servers, no databases, no tracking, no sign-up required.
Fast & Reliable
Built with vanilla TypeScript and a lightweight custom engine, DiffMergy delivers sub-millisecond processing with zero network latency. The entire toolkit works on any modern browser across all operating systems, with no installation or setup needed.