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Tools / Password generator

Password generator

Generates a password from your browser’s cryptographic random source, with control over length and character sets. Nothing is transmitted, logged or stored — reload the page and the password is gone.

Runs entirely in your browser

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About this tool

A strong password is long and unpredictable, and the reliable way to get both is to let a machine choose it at random rather than inventing one yourself. This generator builds a password from your browser’s cryptographic random source — the same class of randomness used for encryption keys — so the result has no pattern a human or a cracking tool can anticipate. You control the length and which character sets to include, from all-lowercase passphrase style to the full mix of upper, lower, digits and symbols.

Everything happens locally. The password is generated in your browser and is never transmitted, logged or stored anywhere; reload the page and it is gone. That matters because a password sent to a server to be “generated” is a password a server has seen — which defeats the purpose. Here, only you ever see it.

For accounts you actually use, the strongest approach is a long random password stored in a password manager, so you never have to remember or retype it. Reserve memorable passphrases for the few secrets you must type by hand, such as the master password to the manager itself, and make those long.

Frequently asked questions

What makes a password strong?
Length and unpredictability. A long password drawn from a large random pool is far harder to crack than a short “complex” one, because each extra character multiplies the number of possibilities an attacker must try.
Is it safe to generate a password on a website?
It is here, because generation happens entirely in your browser using its cryptographic random source and nothing is sent to a server. Avoid any generator that produces the password server-side, since that means a remote system has seen it.
How long should my password be?
Longer is better; many security guides suggest at least 12–16 characters for random passwords, and more for high-value accounts. If you use a password manager there is no downside to making them long.
Should I use symbols and numbers?
Including more character types increases the pool each position is drawn from, which raises strength. A long passphrase of random words can also be strong, but mixing character sets lets you reach high strength in fewer characters.
Do I need a different password for every account?
Yes. Reusing a password means a breach of one site exposes every account that shares it. Generate a unique random password per account and store them in a password manager.

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