Share Wi-Fi details in a scannable format
Use this tool to prepare a QR code for a wireless network. Enter the network name, add its password when required, choose the security type, and indicate whether the network is hidden. A compatible phone can read the code and offer to use the supplied settings.
The code contains connection details, so treat a printed copy like the password itself. Check spaces, punctuation, and capitalization, then scan a test copy before displaying it.
What a Wi-Fi QR code stores
A Wi-Fi QR code uses a structured payload for the SSID, security marker, password, and hidden-network flag. It encodes these values; it does not encrypt them or conceal them from someone who scans the code.
The code is a static snapshot. It does not change the router, create an account, bypass authentication, or guarantee internet access. A reader may show confirmation, and devices differ in security support.
Create and test a Wi-Fi code
1. Read the SSID and security mode from the router or a trusted network administrator. Preserve capitalization, spaces, and punctuation.
2. Enter the SSID and password. Select the matching security option; choose the open option only when the network truly has no password.
3. Enable Hidden network only when the access point does not broadcast its SSID. Do not guess this setting.
4. Generate the QR code, inspect the displayed result, and scan it with a compatible second device.
5. Compare the decoded details with the router settings, then test one printed copy at the size and distance people will use.
Home WPA2 network
Home WPA2 network
How can I share a home network without typing its password?
1. Enter MapleHouse in SSID.
2. Enter River!Path42 in Password and choose WPA/WPA2.
3. Leave Hidden network off, generate the code, and scan it with a second device.
The payload preserves the network settings. The security type and hidden flag must match the router so a compatible reader can interpret the code.
Hidden office network
How do I encode a network that does not broadcast its name?
1. Enter Studio-Staff exactly as configured.
2. Enter QuietDesk9, select WPA/WPA2, and enable Hidden network.
3. Generate and test the code while the network remains hidden.
The payload preserves the network settings. The security type and hidden flag must match the router so a compatible reader can interpret the code.
Guest network with punctuation
How can I share a guest password containing punctuation?
1. Copy the SSID without changing its hyphen.
2. Enter the password exactly, including the semicolon and backslash.
3. Generate the code, scan it, and compare the decoded fields with the router settings.
The payload preserves the network settings. The security type and hidden flag must match the router so a compatible reader can interpret the code.
Open public network
Can I create a code for a network that has no password?
1. Enter Library-Open in SSID.
2. Choose None / open and leave Password empty.
3. Generate the code and test it at the library entrance before displaying it.
The payload preserves the network settings. The security type and hidden flag must match the router so a compatible reader can interpret the code.
WEP compatible network
How should I encode an older network using WEP?
1. Enter Workshop-Old and the current WEP key.
2. Choose WEP and keep Hidden network off.
3. Generate the code and test it on a device that supports the router security mode.
The payload preserves the network settings. The security type and hidden flag must match the router so a compatible reader can interpret the code.
Event network card
What should I check before printing a Wi-Fi code on an event card?
1. Confirm the event SSID and password with the network administrator.
2. Choose WPA/WPA2 and set Hidden network according to the access point.
3. Generate, scan from the planned print size, and place the card where visitors can read it.
The payload preserves the network settings. The security type and hidden flag must match the router so a compatible reader can interpret the code.
Read the generated result
The result should show a QR image and a payload that reflects the SSID, security choice, password, and hidden-network setting. Compare the characters with the network record before sharing it.
A successful scan means the code was readable. It does not prove that the network is nearby, accepting connections, or providing internet access. Check the connection on a test device and remove outdated copies when settings change.
Common mistakes
Selecting WPA/WPA2 for an open network, or choosing None / open while the router requires a password, creates a code that does not match the access point. Confirm the actual security setting before generating.
Changing a password in the form, omitting a space from the SSID, or guessing the hidden flag changes the payload. Escape punctuation according to the Wi-Fi format and test the decoded result before printing.
A Wi-Fi code exposes the settings to anyone who can scan it. Avoid placing it where an unintended audience can access the network, and replace printed codes after credentials change.
Limitations and safe use
The tool prepares a QR payload; it does not configure a router, verify ownership, test signal strength, or promise compatibility with every device. WPA3, enterprise authentication, captive portals, and device-specific behavior may need additional setup.
The encoded password is not a secret once the code is shared. Use a guest network when appropriate, restrict the audience, and rotate credentials if a public copy is lost or no longer needed.
Frequently asked questions
Does the QR code reveal the Wi-Fi password?
Yes. A compatible reader can decode the SSID and password. QR encoding is not encryption, so protect printed and displayed codes like credentials.
What does SSID mean?
SSID is the network name devices display. Enter it exactly, including capitalization, spaces, and punctuation.
Should I enable Hidden network?
Enable it only when the access point does not broadcast its SSID. It must match the router and does not hide the QR code.
Can I use this for an open network?
Yes, when the network has no password. Choose the open option, leave Password empty, and test the generated payload.
Will scanning connect every phone automatically?
No. A device may offer to join after scanning, but confirmation and security support depend on the operating system and reader.
Can I use WPA3 or an enterprise network?
Use only a security option the tool provides and that matches the network. WPA3 or enterprise authentication may need extra setup.
Does changing the router password update the code?
No. The QR code is a static copy. Generate and distribute a new one after any network setting changes.
Can I print the code for guests?
Yes, with the network owner's permission. Prefer a guest network, test the print size, and limit where visitors can scan it.
How the network details become a QR code
Input fields
SSID is the network name. Password is the network credential when one is required. Security identifies the protection mode, and Hidden network records whether the SSID is broadcast. These values must describe the same access point.
Wi-Fi payload
The generator places values into the standard Wi-Fi text form, using markers such as T, S, P, and H. Characters with special meaning require that format's escaping rules. Do not copy a JSON-escaped string as the original password.
Reading and joining
A compatible reader decodes the payload and may offer to join the named network. The operating system and router decide whether connection succeeds. Scanning alone does not prove that the password is current or that internet access exists.
Wi-Fi QR syntax and escaping differ from JSON escaping. Keep the original field values, verify the generated payload, and test the printed result on the devices intended to use it.
References
https://www.qrcode.com/en/about/
https://www.wi-fi.org/discover-wi-fi/security