WiFi QR Code Generator

WiFi QR Code Generator — guide & how to use

What it does

This free WiFi QR code generator builds a scan-to-join QR code right in your browser. A guest opens their phone camera, points it at the code, and taps "Join your network" — no reading a long WPA password aloud, no texting a string of random characters, no typos. It encodes the standard WIFI: payload (the ZXing format, now formalized in the WPA3 specification) with the correct escaping and the all-important two trailing semicolons, then renders a permanent PNG or SVG you fully own.

How to use it

1. Type your network name (SSID) exactly as it appears on your router — it's case-sensitive.
2. Pick the security type: WPA/WPA2/WPA3 for any modern password network, WEP for legacy gear, or None for open networks.
3. Enter the password (use the Show toggle to check it). Leave it blank only for open networks.
4. Tick Hidden network only if your router does not broadcast its name.
5. Download the PNG (fridge / table card), the SVG (large print, stays sharp), or the ready-made print card.
6. Test the scan on the phones you care about before printing in bulk.

Worked example

Say a café names its network Guest Cafe, runs WPA2, and the password is latte;2026 (it contains a semicolon, which is reserved). Choosing WPA/WPA2/WPA3 and typing that password, the tool builds this exact payload — note the escaped semicolon and the two trailing semicolons:

WIFI:T:WPA;S:Guest Cafe;P:latte\;2026;;

If the café instead had a hidden network, the payload would add H:true; before the closing ;;. For an open network with no password, the password segment is dropped entirely and the type becomes nopass: WIFI:T:nopass;S:Guest Cafe;;

WPA vs WPA2 vs WPA3 — pick one token

The WiFi QR format uses a single token, T:WPA, for all password-protected networks — WPA, WPA2, and WPA3. WPA3's "SAE" is the handshake the radio negotiates, not a payload token; emitting T:SAE is a common mistake that breaks spec-compliant scanners. So this tool maps WPA/WPA2/WPA3 → WPA, WEP → WEP, and None → nopass.

Escaping & the hex guard (why your password "just works")

Five characters are reserved in the WIFI: format: semicolon ;, comma ,, colon :, double-quote ", and backslash \. Each must be prefixed with a backslash or the connection silently fails. This tool escapes the backslash first (so it doesn't double-escape the escapes it adds), then the rest. It also applies the hex-ambiguity guard: if your SSID or password is all hex digits with an even length (like DEADBEEF), it wraps the value in literal quotes so phones read it as text, not raw hex bytes. We use backslash-escaping (the real-world ZXing convention) rather than percent-encoding, because Android and iOS scanners expect backslashes.

Print size & error correction

For arm's-length phone scanning, print the symbol at least 2 cm (about 0.8 in) square. Keep the quiet zone (border) at 4 modules or more — cropping it away is the #1 cause of codes that won't scan. Error-correction level M (15%) is the sweet spot for a table tent or fridge card; bump to Q or H if you'll place a logo over the center or print in a rough environment. For large signage, export the SVG so it stays razor-sharp at any size.

Security & honesty notes

• The code IS the password. Anyone who photographs the printed code can read the credential. For public/guest use, put guests on a separate guest SSID, not your main network.
• 100% client-side. Your SSID and password never leave the browser — no network requests, no analytics on the credential.
• Auto-connect isn't universal. Native scanning works on iOS 11+ (Camera app) and Android 10+ (camera/Google Lens, most robust on 14+). Older or OEM-skinned phones vary — that's a device/OS limitation, not the code.
• WPA3-only routers. A phone that isn't WPA3-capable may still fail to join even with a correct code — a radio/auth limitation, not an encoding error.
• 64-hex passwords are valid. A 64-character hex string is a raw pre-shared key, not "too long" — out of scope for typical home use but not an error.
• Static only. The details are permanent and uneditable; changing the password means generating a new code.

Common mistakes this tool prevents

• Forgetting the second trailing semicolon (; vs ;;) — scans but prompts for a password.
• Lowercasing the WIFI: prefix — many scanners won't recognize it.
• Not escaping ; : , \ " in the SSID or password — connection silently fails.
• Emitting T:SAE for WPA3 instead of T:WPA.
• Setting H:true when the network actually broadcasts — can block connection.
• Percent-encoding values, which Android won't decode when scanning.

How to embed this tool on your website

No account, no coding. Copy the embed code and paste it where you want it to appear:

<iframe src="https://snaptoolsuite.com/wifi-qr-code-generator/?embed=1"
  style="width:100%;max-width:560px;height:1100px;border:0;"
  title="WiFi QR Code Generator" loading="lazy"></iframe>
<p>Free <a href="https://snaptoolsuite.com/wifi-qr-code-generator/">WiFi QR Code Generator</a> by Snap Tool Suite</p>

Full copy-paste steps are in the box below.

Frequently asked questions

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