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QR code generator for a Wi-Fi network

A QR code that joins your Wi-Fi network on scan, so guests never have to be told the password.

Static code

The content is stored inside the code for good. Once printed it cannot be changed; you have to generate a new code. Dynamic codes, whose target can be swapped later, are planned for the next stage.

Code settings

Exactly as it appears in the network list. Capitalisation matters.

WPA covers WPA, WPA2 and WPA3. WEP is the old standard, nopass is an open network.

The network password. Leave empty for an open network.

Tick this if the network does not broadcast its name.

The side of one square (module) of the code. Recommended 0.25 to 2 mm.

How much of the code can be damaged or covered without losing data. A higher level gives a bigger code.

Blank margin around the code required by the standard. Keep it on.

Decoration

The finder patterns in the three corners stay square whatever you pick, because a scanner starts from them.

PNG, JPG, SVG or WebP, up to 512 kB. The file stays in your browser and is never uploaded. Adding a logo raises the error correction to its highest level.

Appearance

Hexadecimal, for example #000000.

Fills the quiet zone too.

Preview

Size with quiet zone: 18.5 × 18.5 mm. The on-screen preview is enlarged.

Download the code

PNG file: 222 × 222 px, 304.8 DPI. Each module gets whole pixels and the DPI is set so the printout has exactly the size in mm shown above.

What is Wi-Fi QR code

A Wi-Fi QR code holds the network name, the security type and the password in an agreed format. A phone offers to join with one tap, so nobody copies a password off a card. It is the usual choice for cafés, offices, surgeries and rented flats.

Remember the password is stored in the clear. Anyone who scans the print learns it. For guests, a separate guest network kept apart from company equipment is the right answer.

Frequently asked questions

Does a Wi-Fi QR code work on iPhone and Android?

Yes, both read this format with the built-in camera. On iPhone since iOS 11, on Android since version 10 without an extra app, and before that through the manufacturer's camera app.

Is the password encrypted in the code?

No. The Wi-Fi format stores it in the clear and anyone who scans the code can see it. Do not post a code for your company network in a public place; put up a separate guest network instead.

What do I pick for WPA2 or WPA3?

Choose WPA. One value in this format covers WPA, WPA2 and WPA3, and the phone picks the right variant when connecting.

My network name contains a semicolon or a colon. Is that a problem?

No. Those characters are meaningful in the Wi-Fi format, so we escape them with a backslash. A network called "Cafe;Bar" is therefore read in full rather than truncated at the semicolon.

Why will my phone not join my hidden network?

Tick "Hidden network". Without it the phone looks for the name among broadcast networks and does not find it. Check the name is typed exactly, capitalisation included.

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