Password Generator
Strong random passwords and passphrases.
Password Generator creates random passwords from a character set you control, or memorable passphrases from a word list, using crypto.getRandomValues rather than Math.random. It shows the true entropy in bits and estimated crack time. Passwords are generated on your device and never transmitted.
Loading Password Generator…
Runs entirely on your device. No file or text you enter here is uploaded. How to verify it.
How to use Password Generator
- Choose length and character types, or switch to passphrase mode.
- Read the entropy in bits.
- Copy the password — the clipboard clears itself after a minute.
Questions about Password Generator
Why does the randomness source matter?
Math.random() is a fast pseudo-random generator seeded from predictable state, and its output can be reconstructed. crypto.getRandomValues() draws from the operating system CSPRNG. For a password, that difference is the entire security of the result.Password or passphrase?
A six-word passphrase from a 7,776-word list carries about 77 bits of entropy and is far easier to type on a phone or remember. A 16-character random password with mixed classes gives about 95 bits. Both are far past any practical brute-force threshold; pick by usability.
Is the generated password sent anywhere?
No. It exists in your browser tab, and it is never logged, stored or transmitted. Reload the page and it is gone. If a password generator has a server, it has seen your password.
How long should a password actually be?
Sixteen random characters is a sensible floor for anything that matters, and there is no reason to stop there when a site allows more. Length buys more resistance than another character class does — a longer string from a smaller alphabet beats a short one padded with punctuation.
Does it work without an internet connection?
Yes. Once the page has loaded it needs no network, so you can install it and generate passwords with the connection switched off. There is no account, no email address and nothing to install beyond the browser's own offline cache.
Is Password Generator really free, with no limits?
Yes. There is no account, no daily cap, no file-size tier and no watermark, because there is no server cost to recover. The site is funded by clearly disclosed partner recommendations on the Partners page, never by metering the tools.
Are my files or text uploaded when I use Password Generator?
No. Everything is processed by JavaScript running in your browser, on your device. You can verify it: open your browser's developer tools, switch to the Network tab, and use the tool. You will see no request carrying your data — because there is nowhere for it to go.