FAQ

QR codes for links, Wi-Fi, contacts, and more — quick answers about privacy, fairness, and limits.

Using the tool

Is my data uploaded anywhere?

No. Payloads and logo images are processed only in your browser. We do not collect or store them on a server. Preferences (content type, colors, error correction) may persist in localStorage on this device.

Why does my logo disappear after reload?

Logo uploads are intentionally session-only so images never persist or travel off-device. Re-select the file if you need it again.

What error correction level should I use?

Higher levels (Q or H) survive more damage and logo overlap but make denser codes. Use M for clean prints without a logo; raise to Q/H when overlaying a mark.

What Wi-Fi formats are supported?

Standard WIFI: payloads with WPA, WEP, or open (nopass) networks, optional hidden SSID. Phone camera apps can usually join after scanning.

PNG vs SVG?

PNG is a raster image for slides and chats. SVG is vector and scales cleanly for print and design tools.