About OhMyQR

OhMyQR is a small collection of free QR code and barcode generators. Every tool runs locally in your browser — your URLs, WiFi passwords, and contact details never leave your device. There is no signup, no usage limit, and no server-side processing of the content you encode.

Who runs it

OhMyQR is operated by an independent web developer based in South Korea. The site was built because most QR generators upload your data to a server before drawing the code — even when none of that is technically necessary. We wanted one place with a clean UI, fast load, no upsells, and complete client-side processing.

How it's funded

The site shows ads served by Google AdSense. Ads are clearly labeled and never inserted in places that interfere with the tool itself (or could be mistaken for a QR code). Revenue covers the domain, analytics, and a small amount of time spent maintaining the code.

Open about how it works

Each tool is implemented in plain JavaScript that you can inspect with your browser's developer tools. QR rendering uses qr-code-styling; barcodes use JsBarcode; CSV parsing uses PapaParse; ZIP packaging uses JSZip. All open source. You can verify in DevTools that no network requests are made for the content you type.

Contact

Questions, feedback, or bug reports: hello@ohmyqr.app.