Password Generator: Free Strong Random Password Creator

How it works

104 bits of entropy would take billions of years to brute-force on the fastest hardware today.

Each character set you enable adds to the pool the generator draws from: uppercase and lowercase letters contribute 26 possibilities each, numbers add 10, and symbols add roughly 32 more depending on the set. A wider pool means each position in the password carries more entropy, which is why toggling on symbols raises the strength meter even at the same length. The generator also refuses to let you disable the last remaining character set, since a password built from zero character types isn't a password at all.

What makes a password strong

• 📏Length matters most. Going from 12 to 16 characters adds exponentially more combinations, since every extra character multiplies the total possibility space rather than adding to it.
• 🔣Including symbols and numbers expands the character pool, making each position harder to guess than a password built from letters alone.
• 🚫Never reuse passwords. A breach at one site exposes every account that shares the same password, and attackers test leaked credentials against other services as a matter of routine.
• 🔑The hardest part isn't generating a strong password, it's remembering one per site. That's what password managers are for, and it's the reason random generators like this one exist in the first place.

Common use cases

Use the generator when you create a new account and don't want to reuse an existing password or type a variation on one you already use elsewhere. Generate a long, symbol-heavy password for anything a password manager will remember on your behalf, since you never need to type or recall it yourself. For accounts you occasionally need to enter manually, on a shared device or a login screen without autofill, dial the length down slightly and lean on the strength meter to confirm you're still well past the "Strong" threshold before settling on a shorter password.

Choosing a length and character mix

For most everyday accounts, aim for at least 16 characters with all four character sets enabled. For high-value accounts like your primary email or banking login, push the slider to 20 or higher, since those accounts are frequently the target of automated credential-stuffing attacks and the extra length costs nothing at generation time. Some sites still restrict symbols or cap password length; if a generated password gets rejected, turn off symbols and try again rather than shortening the length, since letters and numbers alone at 16+ characters still beat a shorter password with every character type enabled.

Passwords vs. passphrases

A random password generated here draws each character independently from your chosen sets, which maximizes entropy per character but produces something you can't memorize. A passphrase built from several unrelated words, entered manually rather than generated, trades some entropy per character for something a human can actually recall without writing it down. Use this generator for anything a password manager stores for you, and reserve memorized passphrases for the handful of credentials you genuinely need to type from memory, like the master password protecting the manager itself.

Local generation, no transmission

Every password this tool produces is generated and displayed entirely in your browser. Nothing you generate, copy, or discard is sent to a server, logged, or stored anywhere outside your own device's memory for that session. Closing the tab or generating a new password clears the previous one from view; nothing persists unless you copy it somewhere yourself. That local-only design matters specifically for a password generator, since a tool that transmitted generated passwords over the network would defeat the purpose of generating them randomly in the first place.