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Wi-Fi QR Code Generator

Let guests join your network by pointing a camera at a card — no password typed out loud.

  • Free, with no account
  • Static — it never expires
  • Encoded on your device

Exactly as it appears in the Wi-Fi list, including capitals and hyphens.

WPA covers WPA, WPA2 and WPA3.

Punctuation is escaped automatically.

Leave unticked unless you specifically turned SSID broadcast off.

Print the password underneath as well

Laptops cannot join from a camera scan, and neither can a guest whose phone camera is playing up. A card with the code and the password in readable text solves both cases and costs you nothing.

No share link here — a URL containing your Wi-Fi password would end up in browser history and server logs.

Export

SVG has no resolution at all — it is the right choice for anything that will be printed.

Appearance & encoding

Higher levels survive damage and allow a bigger logo, but make the symbol denser.

The specification requires 4. Below that, decoders often fail to find the symbol at all.

Centre logo

PNG, JPG, SVG or WebP up to 512 KB. The file is read in this tab and never uploaded.

The safe maximum depends on the symbol size, not just the error-correction level — the check below works it out for the code you actually have.

Print readiness

Generate a code to see its minimum printed size.

What is actually encoded

What goes inside a Wi-Fi QR Code

The payload is a single line of text in a format ZXing defined and every phone now follows. For a network called Guest-Network with the password welcome-2026 on WPA2, it is exactly this:

WIFI:T:WPA;S:Guest-Network;P:welcome-2026;;

Four fields, semicolon-separated, terminated by a double semicolon. T is the security type, S the network name, P the password, and an optional H:true marks a hidden network. That is the whole specification. There is no encryption layer and no server involved — which is why it works with the phone in aeroplane mode, and why the password is readable by anyone who scans the card.

A small printed table card on a café table showing a QR Code, the network name and the password in readable type
The card that works for everyone: code on top for phones, network name and password in plain type for laptops.

The escaping rule most generators get wrong

Because ; separates fields and : separates a field from its value, five characters are special: \, ;, ,, : and ". Each one inside your SSID or password must be preceded by a backslash. A password of p@ss;word has to be written p@ss\;word, or the reader stops at the semicolon and tries to join with p@ss.

There is a second, rarer trap. If your SSID or password consists only of hexadecimal digits and has an even length — C0FFEE, say — some readers interpret it as hex-encoded bytes rather than literal text. The fix is to wrap the value in double quotes. We detect that case and quote it for you; the note under the preview tells you when it has happened.

Guest network, not your main one

A printed code is a permanent, copyable credential. Put it on a guest SSID that is isolated from your till, your NAS and your office machines. If the café across the road photographs your card, the worst case should be free Wi-Fi, not access to your network.

Where these work well

  • Cafés and restaurants. One card per table beats shouting a password across a room.
  • Short-term rentals. Frame it in the hallway. Guests arrive late, tired, and with no wish to read a laminated binder.
  • Meeting rooms and co-working desks. A sticker on the table edge removes an entire category of small interruption.
  • Trade-show stands. Rotate the guest password after the show and reprint — the code costs nothing to regenerate.

Limits worth knowing

  • Desktop operating systems do not join from a scan. Windows and macOS have no equivalent handler. Always print the password too.
  • Enterprise networks (WPA2-Enterprise, 802.1X) are not supported. The format has no field for a username or a certificate.
  • Changing the password means reprinting. The credential is inside the pattern; there is no indirection to update.
  • Captive portals still appear. The code joins the network. If your router then demands a click-through, guests will still see it.

Print size for a Wi-Fi code

Wi-Fi payloads are short, so the symbol is usually version 2 to 4 — a 25×25 to 33×33 grid. On an office laser printer that means roughly 20 mm square is comfortable and 15 mm is about the floor. A table tent read at arm's length is fine at 25 mm. Run the exact numbers with the print size checker if you are laying out a small card.

FAQ

Frequently asked questions

Does my Wi-Fi password get sent to your servers?
No. There is nowhere to send it — QRCodeDojo is static files on a CDN with no backend. The password is read from the input box by JavaScript in this tab, encoded into the pattern, and forgotten when you close the page. You can open your browser's network tab and watch: no request is made while you type.
Is it safe to put my Wi-Fi password on a card guests can see?
Anyone who scans the code gets the password in plain text — the QR Code is an encoding, not encryption. That is fine for a guest network and a bad idea for the network your point-of-sale terminal is on. Put guests on a separate SSID and keep your own devices somewhere else.
Which phones support Wi-Fi QR Codes?
iPhone from iOS 11 onward reads them from the built-in camera. Android has supported them from Android 10 in the camera app, and earlier versions through Google Lens. Windows 11 and macOS do not join from a camera scan — a laptop user will need the password typed out, so print it under the code as well.
Why does my password with a semicolon not work elsewhere?
The WIFI: format uses ; as a field separator, so a literal semicolon, comma, colon, quote or backslash inside your password has to be escaped with a backslash. We do that automatically. Many generators do not, which is why a password with punctuation often fails on other sites.
What is the “hidden network” checkbox for?
If your router does not broadcast its SSID, the phone has to be told to look for it. Tick the box and H:true is added. Be aware that hidden-network joining is unreliable on some Android builds — test with a real phone before you laminate anything.
Can I use this for WPA3?
Yes. Choose WPA/WPA2 — the same T:WPA value covers WPA3 in practice, and phones negotiate the strongest protocol the router offers. There is no separate WPA3 value in the format.

Keep going

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