Strong passwords, without uploading anything

A password generator is a tool that creates random passwords for you instead of asking you to invent one. Rather than reusing the same password across sites or building one out of a name and a birthday, you get a unique combination of letters, numbers and symbols. Our free password generator lets you choose the length and which character groups to include.

Start with length: use 16 characters or more wherever the service allows it. Add uppercase letters, lowercase letters, numbers and symbols where they are accepted, and avoid names, birthdays, dictionary phrases and predictable patterns. Use a different password for every account and store each one in a password manager.

For general online accounts, a randomly generated password of 16 characters or more is a practical target. Some services cap length or reject certain symbols, so check their requirements first. Length is not everything on its own: a long password built from a predictable pattern is far weaker than a shorter genuinely random one. Randomness and uniqueness matter just as much as the character count.

Yes. Every tool here is available at no cost — there is no account to create, no paywall and no premium tier. You do not need to understand how password generation works to use it.

It depends entirely on the tool. A generator that draws from a secure source of randomness and creates the password locally in your browser keeps the result away from servers and logs. A generator that sends the password to a server hands it to someone else’s infrastructure. The difference is verifiable: open your browser’s Network tab and press Generate — on this site, no request contains the password.

No. The password is assembled in your browser from crypto.getRandomValues(). It is never transmitted, never written to cookies or browser storage, never placed in a URL, and never logged. Refreshing the page discards it. If you want to confirm that for yourself, generate a password and check the Network tab — you will see the page load and nothing carrying your password.

Yes. Choose the length from 8 to 128 characters and toggle the character groups you want: lowercase, uppercase, numbers and symbols. You can also exclude visually ambiguous characters such as I, l, 1, O and 0, which helps when a password has to be read aloud or typed from a screen. Pick options that the destination service actually accepts.

Yes, when the matching options are enabled the generator includes them alongside letters. Both widen the pool of possible combinations, though strength still depends on length, randomness and uniqueness — adding a symbol is worth far less than adding a few more random characters.

Entropy measures how uncertain a password is, and therefore how much work an attacker has to do to guess it. For a uniformly random password of length L drawn from an alphabet of N possible characters, the theoretical value is about L × log₂(N) bits. It is an upper bound, not a guarantee: a password that follows a predictable pattern has far less real-world entropy than its character count suggests. Our password entropy calculator shows the working.

No password can be guaranteed to be uncrackable. A long, random, unique password makes guessing dramatically harder, but accounts are still compromised through phishing, malware, data breaches and weak account recovery. Turn on multifactor authentication wherever it is offered, keep your devices updated, and never reuse a password across accounts.

No. Reuse turns one breach into many: when a site you signed up to is compromised, every account sharing that password is exposed too. This is why our random string generator exists alongside the password tool — a different random value per account, stored in a password manager so you do not have to remember them all.

A generator creates new passwords; a password manager stores and retrieves the ones you already have. They solve different halves of the same problem, and most people are best off using both: generate a unique password for each account, then let the manager remember it. If you would rather remember something, our passphrase generator builds high-entropy passphrases that are far easier to recall.

Generally, yes. Self-invented passwords lean on familiar words, personal details and substitutions such as P@ssw0rd — patterns that automated cracking tools are built to guess, and that people underestimate. A random password avoids those patterns entirely, which is why a password manager plus a generated value per account beats a memorable password reused everywhere.

Yes — a long, unique, randomly generated password is a good fit for banking, email and other sensitive accounts, as long as it meets the service’s requirements. Protect those accounts further with multifactor authentication, tight recovery settings, and careful checks that you are on the real website or app before you type anything.

There is nothing for anyone to recover, including us. Because the value is never saved — not on a server, not in your browser storage — we could not look it up even if we wanted to. Retrieve it from your password manager if you saved it there; otherwise use the service’s own password-reset flow.

Use a unique password for every account, enable multifactor authentication, keep your browser and operating system updated, treat unexpected login prompts as suspicious, and never enter credentials on a site you reached from a link in a message. The password security articles cover these habits in more depth.

Not always. Length helps most when the extra characters are random. A long, predictable phrase — P@ssw0rd123456! — is easier to guess than a shorter string with no discernible pattern, because attackers guess by pattern first and brute force last. Aim for length, randomness and uniqueness together rather than length on its own.

It removes the two habits that weaken passwords most: reusing one everywhere and inventing them by hand. You choose the length and character groups, the browser supplies real cryptographic randomness, and the result stays on your device. Generate a fresh value for each service, save it in a password manager, and you are done. Every claim on this page is checkable in your browser’s developer tools.