75tools
    FR

    WiFi QR code generator

    Enter the network name and password: the QR code and the card appear.

    Enter the network password, or choose "No password" for an open network.

    Scan the screen with your phone camera to check it.

    27 bytes · 25 × 25 modules · 0.91 mm per module if printed 3 cm wide

    Colours, margin, error correction and size
    Show the text encoded in the QR code
    WIFI:T:WPA;S:Home Wifi;P:;;

    How this WiFi QR code generator works

    This WiFi QR code generator turns your network name and password into a code that guests scan with their phone camera to join, without typing anything. Enter the network name (SSID) exactly as it appears in the wifi list, pick the security type and type the password: the code appears at once, with a button to print a card 12 cm wide, in French, English or both. For example, a network called "Home Wifi" protected by "sunshine-2026" becomes the text WIFI:T:WPA;S:Home Wifi;P:sunshine-2026;; which is 40 characters and a code of 29 × 29 modules, easy to scan from a metre away on the card. The catch: the password sits in the code as plain text, and the card stops working the day you change the password of your box.

    Your French internet box and its wifi details

    In France the router is called a "box" (la box internet) and comes from your provider: a Livebox from Orange, a Freebox from Free, a Bbox from Bouygues Telecom or an SFR box. The default network name and password are printed on a label underneath or on the back, often as a long random key. That is exactly the case where a QR code helps: nobody wants to dictate twenty characters to a visitor.

    Behind the code is a short piece of text in a format documented by the ZXing project and read by phone cameras. Field T is the security type (WPA, WEP or nopass for an open network), S the network name, P the password, and H:true marks a hidden network. Semicolons, commas, colons, double quotes and backslashes inside the name or password get a backslash in front of them; the tool does this for you, and "Show the text encoded" lets you check the result. Nothing you type leaves your browser.

    The Wi-Fi Alliance states that WPA3 is mandatory on Wi-Fi CERTIFIED devices and better resists password guessing. The QR code works the same way with WPA2 and WPA3, so the single "WPA" option covers both.

    Joining by scanning on iPhone and Android

    On iPhone, Apple's guide is simple: open the Camera app in Photo mode, frame the code and tap the link that appears at the bottom of the screen. The Scan Code control in Control Centre works too. On Android, most camera apps read QR codes, and Google Lens covers the rest. Android can even show its own wifi QR code: Google's help explains that you open Settings, Network and internet, Internet, tap your network, then Share.

    A printed card still has the edge when you are not around: a holiday let (gîte or chambre d'hôtes), a waiting room, a coworking desk. Laptops rarely scan QR codes, which is why the card can also print the password in full.

    A printed wifi card for guests and customers

    "Print the card" lays out the word Wi-Fi, the network name, a 7 cm code and one line of instructions, plus the password if you tick the option. For a rental that welcomes both French and international guests, the bilingual card avoids two versions. In the print dialog, "Save as PDF" keeps a copy or lets you send it to a print shop.

    If the place is open to the public, do not share your main network: turn on the guest network (réseau invité) in your box settings, which keeps visitors away from your computers and printer, and put that one on the card. To add a link to your online welcome booklet, use the free QR code generator.

    Frequently asked questions

    My wifi password has a semicolon or a colon in it, will the QR code still work?

    Yes. In the WIFI: format, semicolons separate the fields and colons separate a field name from its value, so the generator puts a backslash in front of every semicolon, comma, colon, double quote and backslash in your network name and password, as the format requires. The phone removes those backslashes when it reads the code and gets the exact password back.

    My French internet box (Livebox, Freebox, Bbox) uses WPA3, which option do I pick?

    Pick "WPA, WPA2 or WPA3". The WIFI: format documented by ZXing has a single WPA value for every network protected by a shared password, and phones use it for WPA3 too. If an older laptop or games console cannot join a WPA3-only network, switch the box to its mixed WPA2/WPA3 mode in the box settings: that is a device limit, not a QR code problem.

    Can my guests read the wifi password from the QR code?

    Yes, if they want to. The password is stored as plain text in the code, and any QR reader app, including the 75tools QR code reader, can display it. The code saves you spelling the password out; it does not hide it. For a holiday let or an office, turn on the guest network (réseau invité) of your box and share that one instead.

    My provider replaced the box: does the printed wifi card still work?

    Usually not. A new box from Orange, Free, SFR or Bouygues comes with a new network name and password printed on its label, and the old card still holds the old ones. Either set the new box to your previous name and password, or make a new code and reprint the card. Check the card with your own phone after any change.

    What does the hidden network option do?

    A hidden network does not broadcast its name, so it never appears in the phone's list of available networks. Ticking the option adds H:true to the code, which tells the phone to look for the network even though it cannot see it. If your network shows up normally in the wifi list, leave the box unticked: it adds nothing and makes the code longer.

    Sources

    More tools: qr codes