SVG for anything printed large — a poster or a banner — because it stays sharp at any size. PNG for a screen or a small print where the resolution is already enough.

How does the wifi one work?

It encodes the network name, password and security type in the format phones recognise, so scanning it joins the network without anybody typing the password.

Does the code stop working if I delete it here?

No. The code holds your data directly — there is no server or link in between, so it works forever and offline.

QR Code Generator

QR codes for links, wifi, contact cards and plain text, exported as PNG or SVG.

Runs in your browser — nothing uploadednew

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How to use QR Code Generator

Pick what the code should hold — a link, wifi details, a contact card or plain text.
Fill in the fields and watch the code update.
Download as PNG for print, or SVG to scale it to any size.

What a QR code can hold

Content	What to enter	Opens
Website	https://example.com	The browser
Wifi	WIFI:T:WPA;S:NetworkName;P:password;;	Join-network prompt
Email	mailto:[email protected]	A new email
Phone	tel:+441234567890	The dialler
SMS	smsto:+441234567890:Hello	A new message
Plain text	Any text	Shown as text

Keep the content short. A long URL makes a denser code, which needs to be printed larger or scanned closer.

Print at least 2 × 2 cm for a code scanned at arm’s length, and leave the white margin — crowding it is the usual reason a code will not read.

Questions

PNG or SVG?: SVG for anything printed large — a poster or a banner — because it stays sharp at any size. PNG for a screen or a small print where the resolution is already enough.
How does the wifi one work?: It encodes the network name, password and security type in the format phones recognise, so scanning it joins the network without anybody typing the password.
Does the code stop working if I delete it here?: No. The code holds your data directly — there is no server or link in between, so it works forever and offline.