Scanning this with a phone camera joins the network directly — no need to share the password out loud.
Yes. Wi-Fi QR Generator is completely free, with no sign-up, no daily limit, and no watermark on what you download.
No. Wi-Fi QR Generator runs entirely in your browser using JavaScript — nothing you type or upload ever leaves your device.
No. The QR code is generated once and saved as an image on your device — it will keep working for as long as the data it points to (like a link) stays valid.