QR Code Generator

It means the tool decoded the exact image you see, with your colors, margin, size and logo composited in, and the decoded data matched your input byte for byte, at full size and in a small grayscale test. That catches broken designs before you print them. It is a strong local check, not a universal guarantee: always scan once with a real phone before a mass print run.

Never. Every code made here is a static QR code: your URL, WiFi credentials or vCard is encoded directly into the black and white pattern itself. There is no redirect server, no account and no subscription behind it, so the code keeps working for as long as the destination exists. Print it on ten thousand boxes with confidence.

The QR specification requires a quiet zone, a blank border four modules wide on every side, so scanners can find the code against its surroundings. Trimming it is one of the most common reasons printed codes fail. This tool defaults to 4, warns loudly below it, and will not mark a smaller margin as Verified.

The tool adds https:// for you and tells you so. A bare "example.com" encoded as raw text makes many scanners display it as plain text instead of offering to open the website. Script-like schemes such as javascript: and data: are blocked entirely, while genuine deep links (mailto:, tel:, custom app schemes) are kept with a notice.

Yes. The logo is fitted inside a bounded square, about 20 percent of the code width regardless of the image's aspect ratio, with a solid pad behind it, and error correction switches to level H so the hidden modules can be reconstructed. The verification step then decodes the final image with the logo in place, so you know it still scans. The logo is included in PNG, SVG and PDF exports alike.

M, the default, suits most screens and clean print jobs: it survives 15 percent damage. Pick Q or H for codes that will be laminated, weathered, printed small or placed behind glass. H recovers from 30 percent damage, which is why this tool switches to H automatically when you add a logo: the logo itself covers part of the pattern.

Two rules together: each module (small square) should print at least 0.33 mm wide, and the whole code should be about one tenth of the intended scan distance. The print guidance under the preview does this math live for your exact data: denser payloads mean more modules, which means a bigger minimum print. The PDF export then produces exactly the physical size you set.

PNG for screens, documents and web use, at 1024 px for anything that might be enlarged. SVG for print shops: it is vector, sharp at any scale. PDF when you need an exact physical size, for example a 50 mm label: the page is generated at precisely the width you set, at print resolution. All three contain the complete design including the logo.

Encode a URL with UTM parameters instead of a bare link, for example ?utm_source=qr&utm_medium=print&utm_campaign=menu. Every scan then shows up in your analytics as a visit with that source attached, per campaign and per placement. You get scan tracking with zero dependency on a QR service, and the code still never expires.