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utility

Wi-Fi Share

Share Wi-Fi connection details by QR code, copy, large display, print layout, and experimental NFC tag writing on supported devices.

View on GitHub
Local processing
About your filesFiles and content selected in this tool are processed in your browser and are not uploaded to a Browser Kitty backend.
Operation demo See the basic workflow in a short video.

About this tool

Wi-Fi Share creates a connection QR code from an SSID and password so you can hand Wi-Fi details to family, guests, or event visitors. It supports WPA / WPA2 / WPA3 Personal, WEP, open networks, and hidden SSIDs. In addition to the QR code, you can copy the SSID or password separately, use the system share sheet on supported devices, or show the details in large text.

For signs or handouts, the tool creates an A4-oriented print layout and lets you decide whether the password should appear on paper. Frequently used Wi-Fi details are stored in browser localStorage only when you explicitly save them. On supported Android browsers, an experimental Web NFC option can write connection details to an NDEF-compatible NFC tag. The app does not send the Wi-Fi details you enter to Browser Kitty servers.

Good for

  • Share home Wi-Fi with family or guests using a QR code
  • Print an A4 guest Wi-Fi sign for a shop, reception desk, or event
  • Show or copy SSID/password details for a computer where scanning a QR code is inconvenient
  • Write Wi-Fi connection details to an NFC tag from a supported Android device

What it can do

Key capabilities available in this tool.

How to use

  1. Open the tool and enter the network name (SSID) and a password when required.
  2. Choose WPA / WPA2 / WPA3, WEP, or open network security, and enable hidden network only when appropriate.
  3. Show the QR code and scan it from the device you want to connect. You can also share, copy the SSID/password, or show them in large text.
  4. For a posted sign, open the print layout, confirm whether the password should be printed, and print it on A4 paper.
  5. Save frequently used Wi-Fi details locally only when needed. Experimental NFC tag writing is available on supported environments.

Supported

  • Wi-Fi QR: WPA / WPA2 / WPA3 Personal, WEP, open networks, and hidden SSIDs.
  • Sharing: QR display and PNG save, separate SSID/password copy, large-text display, and OS sharing on supported devices.
  • Printing: A4-oriented layout with password printing optional and off when not needed.
  • Saved networks: only Wi-Fi details you explicitly save are stored in this browser's localStorage.
  • NFC: experimental NDEF tag writing through Web NFC on supported Android browsers.

Limitations and notes

  • The tool cannot automatically read the current SSID or Wi-Fi password from the operating system; you enter those details yourself.
  • Enterprise / EAP Wi-Fi is not supported. WPA3-only networks and Wi-Fi QR compatibility also depend on the receiving device and operating system.
  • Some features such as Web Share, Screen Wake Lock, and Web NFC depend on browser/OS support and secure-context requirements. Web NFC is experimental and mainly available in supported Android browsers over HTTPS.
  • Saved Wi-Fi details use browser localStorage rather than the operating system's protected credential store and may disappear when site data is cleared.
  • QR codes and NFC tags contain connection information, so someone who can read them may be able to join the network.

Frequently asked questions

Are my SSID or password sent to a server?

No. QR generation, copy, large display, PNG creation, and saved-network management run in the browser. If you explicitly use system sharing or NFC writing, the selected information is passed to the OS share flow or the NFC tag.

Can it automatically show the password for my current Wi-Fi network?

No. A web page cannot retrieve the current SSID or Wi-Fi password stored by the operating system, so you enter the SSID and password yourself.

Can I print a Wi-Fi sign?

Yes. The tool creates an A4-oriented layout centered on the QR code and SSID. You can choose whether the password should also appear on the printed page.

Does NFC tag writing work on every phone?

No. It is experimental and requires a supported Android browser with Web NFC plus conditions such as HTTPS. QR, copy, and print features remain available when NFC writing is unavailable.

Offline version and source code

The saved standalone HTML can still generate Wi-Fi QR codes, copy or show details, save PNG images, and create print layouts. Some APIs such as Web Share, Screen Wake Lock, and Web NFC may require a secure context such as HTTPS and can be unavailable from a local HTML file.

View source on GitHub

Use together

Useful next steps and companion tools, organized around the workflow.

Scan the Wi-Fi QR QR Code Reader Use QR Code Reader on another device to scan a generated Wi-Fi QR or inspect one saved in an image. Show other text or URLs as QR Signal Screen Use Signal Screen when you want to show a URL or other text as a QR code instead of Wi-Fi credentials.