Why 12 characters by default?

12 characters of upper and lower case letters and digits give about 71 bits of entropy, far more than an attacker can guess by capturing the WPA2 handshake and testing passwords offline. It is also short enough to type accurately on a phone keyboard.

Should I include symbols in a Wi-Fi password?

Symbols are optional. They add entropy but make the password harder to read aloud and to type on touch keyboards. For most home and office networks, mixed letters and numbers strike a better balance.

How long can a Wi-Fi password be?

WPA2 personal networks accept passphrases of 8 to 63 characters, and most routers apply the same range to WPA3. The 12-character default fits comfortably. The length slider runs from 4 to 64, so stay between 8 and 63 for a router password.

Can I share the Wi-Fi password as a QR code?

Yes. Use the Wi-Fi QR Code Generator on this site to create a QR code guests can scan to join the network without typing the password manually.

Wi-Fi password generator

Generate a Wi-Fi password that is short enough to type from a guest device but long enough to be hard to guess. The default is 12 characters of letters and numbers, quick to type on a phone keyboard. All generation runs in your browser using the Web Crypto API.

Strong · 71 bits

Copying puts the password on your clipboard. Your operating system may keep it in its clipboard history.

Length12

A–Z uppercasea–z lowercase0–9 numbers!@# symbols

Bulk generation

Generatepasswords

How it works

The tool uses crypto.getRandomValues(), the browser's built-in cryptographically secure random number generator, to select characters or words. No library is required and our servers are not involved. The password is generated entirely inside your browser tab.

Processing runs in your browser

All generation runs locally in your browser. The password exists only in your browser until you copy it. You can prove this yourself in your browser's DevTools Network tab. Once you copy a password, your operating system may keep it in its clipboard history or sync it to your other devices: Windows clipboard history and cloud clipboard, Apple Universal Clipboard or a clipboard manager. In a private window, Chrome, Edge and Firefox keep copies out of Windows clipboard history and cloud clipboard.

Related operations

To share a Wi-Fi password without reading it out, use the Wi-Fi QR code generator. When you need random identifiers rather than secrets, use the UUID generator. To check that a copied key or file arrived unchanged, compare SHA-256 checksums with the hash generator.

Frequently asked questions

Why 12 characters by default?: 12 characters of upper and lower case letters and digits give about 71 bits of entropy, far more than an attacker can guess by capturing the WPA2 handshake and testing passwords offline. It is also short enough to type accurately on a phone keyboard.
Should I include symbols in a Wi-Fi password?: Symbols are optional. They add entropy but make the password harder to read aloud and to type on touch keyboards. For most home and office networks, mixed letters and numbers strike a better balance.
How long can a Wi-Fi password be?: WPA2 personal networks accept passphrases of 8 to 63 characters, and most routers apply the same range to WPA3. The 12-character default fits comfortably. The length slider runs from 4 to 64, so stay between 8 and 63 for a router password.
Can I share the Wi-Fi password as a QR code?: Yes. Use the Wi-Fi QR Code Generator on this site to create a QR code guests can scan to join the network without typing the password manually.

Last reviewed September 30, 2026

Other pages for this tool

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Step by step: Generate and hand off a password by QR code