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A QR code is just a visual encoding of text - a URL, a plain note, or contact details - that a phone camera can read back instantly. This renders a high-resolution QR code from whatever text or link you provide, with adjustable size and colors, downloadable as a PNG.

When you'd use this

Printing a QR code on packaging, a poster, or a business card that links to a website, or encoding contact details so someone can scan straight into their phone's address book.

Common errors

A QR code that won't scan is almost always a contrast problem - light-colored modules on a light background, or a color combination with too little brightness difference, since scanners depend on a clear light/dark distinction to read the pattern.

Very long text (a full paragraph, for instance) produces a denser, more intricate code that's harder for a camera to resolve at small print sizes - shorter input scans more reliably, especially at small sizes.

Frequently asked questions

Is there a limit to how much text a QR code can hold?

Yes - QR codes have a fixed maximum data capacity that depends on the encoded content type, and longer input produces a visually denser code that needs a larger print size to scan reliably. Keeping the encoded text as short as practical (a shortened URL instead of a long one) generally scans better.

Will the downloaded PNG work for print, not just screens?

The PNG is generated at the resolution you set before downloading - choose a larger size before exporting if the code is going onto printed material, since scaling a small image up after the fact will blur it rather than add real resolution.