Wi-Fi password generator
A strong WPA2/WPA3 password that is still easy to type on a phone, a TV, or a printer
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Why Wi-Fi passwords need to be long
With WPA2-Personal, anyone within radio range can capture the handshake a device makes when it joins (or request a PMKID from the router) and then guess passwords offline, as fast as their hardware allows, without ever connecting. Short passwords, dictionary words, and phone numbers fall in minutes. A long random password does not.
WPA3-Personal (SAE) fixes this: every guess requires a live exchange with the router. But many routers run a WPA2/WPA3 transition mode so older devices can still join — and that keeps the WPA2 weakness. Use a long password either way.
Length and characters
WPA2 and WPA3 Personal accept passphrases of 8 to 63 printable ASCII characters. The defaults here — 20 characters of letters and digits without look-alikes (57 possible characters) — give about 117 bits, while staying easy to type on a TV remote or read off a card.
| Length | Entropy (letters + digits, no look-alikes) |
|---|---|
| 12 | ~70 bits |
| 16 | ~93 bits |
| 20 | ~117 bits |
| 24 | ~140 bits |
Setting it up
- Use WPA3-Personal, or WPA2/WPA3 mixed mode if you still have older devices. Turn off WPS.
- Change the router's admin password too — it is a different password from the Wi-Fi one, and many routers ship with a default.
- Give visitors a separate guest network, and change its password when people who knew it move on.
Sharing it with guests
A password texted to a group chat or taped to the fridge outlives every visit. For a one-off guest, press Share it as a one-time link: they get a link that opens once, and the password is encrypted in your browser and expires after 24 hours.
Frequently asked questions
How long should a Wi-Fi password be?
At least 16 random characters, and 20 is better. WPA2-Personal handshakes can be captured by anyone in range and guessed offline at high speed, so a short or dictionary-based Wi-Fi password can be cracked without ever connecting.
Can a Wi-Fi password contain symbols?
WPA2 and WPA3 Personal accept 8 to 63 printable ASCII characters, symbols included. They are off by default here because they are painful on TV remotes and printers and add little; length does more.
Is a shorter password fine on WPA3?
WPA3-Personal (SAE) stops offline guessing, so it is much more forgiving. But many routers run a WPA2/WPA3 transition mode for older devices, which keeps the WPA2 weakness — so use a long password anyway.
Does this page send my Wi-Fi password anywhere?
No. It is generated in your browser and the page is not allowed to make network requests. Nothing is logged or stored.