QR Code Generator with Logo

Choose «High (25%)» or «Max (30%)». The level sets how much of the matrix can be damaged or hidden before the data is unrecoverable, and a centre logo hides exactly that kind of area. At 7% even a modest logo breaks scanning. The trade-off is density: higher correction adds modules, so the printed code needs a little more space.

No. The code is rendered to a canvas and the only export button produces a PNG bitmap. Make the code large on screen before you download so the raster has enough pixels for print. If your printer insists on vector artwork, the PNG has to be traced by a designer, or the code rebuilt in a vector editor. Better to say that plainly than to promise a format the tool does not produce.

Scanners need contrast between the dark modules and whatever is behind them, and a busy photo destroys it. Three fixes usually work together: raise error correction to 30%, give the code a solid light plate colour instead of letting the photo show through, and push the scale slider up so the code occupies more of the frame.

A working rule is that the code's side should be roughly one tenth of the scanning distance. A card held at 25-30 cm reads fine at 2-2.5 cm. A sticker scanned from across a pavement, say 1.5 m, needs 15 cm or more. Always keep the quiet zone — four modules of blank margin — or scanners struggle to find the code at all.

Switch to Wi-Fi mode and fill in the network name, security type and password; the tool assembles the standard WIFI:S:name;T:WPA;P:password;; string. iOS and Android cameras recognise it and offer a one-tap join. Remember the password is stored in the code as plain text, so this belongs on a guest network, not your main corporate SSID.

No. The matrix is computed by the qrcodejs library loaded from a CDN, and every drawing step happens on a canvas inside your tab. What you type is never transmitted to us or logged. Close the tab and the field empties with it. One consequence worth knowing: the URL is baked into the image, so changing the destination later means generating a new code.

Yes. The layout adapts to narrow screens and the logo and background pickers open the normal file chooser, so you can pull an image straight from the camera roll. The one rough edge is the sliders — scale and corner radius are fiddlier with a fingertip than with a mouse. Testing is easy though: print the result and scan it with a second phone.