Random Password Generator — Strong & Private
Generate strong passwords, memorable passphrases, PINs and hex tokens with a live strength meter. Every password is created on your device with the browser’s secure random generator — nothing is ever sent to a server.
Weak and reused passwords remain the most common way accounts get compromised. A strong password is long, random, and unique to each account — three things humans are bad at producing and machines are excellent at. This generator draws every character from your browser’s cryptographically secure random number generator, with rejection sampling to guarantee an unbiased, uniform choice.
Different situations call for different shapes of password. The Random pattern maximises entropy per character for anything stored in a password manager. Passphrases trade a few bits for memorability — ideal for master passwords and disk encryption. Easy-to-say and easy-to-read variants avoid characters that are awkward to speak or easily confused (like 0/O and 1/l/I), and PIN or Hex cover devices, SIM cards and API secrets.
Generated something you want to keep? Kleopatra includes a free local-first password manager: entries live on your device, searchable next to your PGP keys, and with online sync enabled everything is encrypted with AES-256 before it leaves your machine.
Your privacy is guaranteed by design
Password generation happens entirely in your browser. Nothing you generate is sent to our servers, logged, or stored anywhere unless you choose to save it — and saved entries are end-to-end encrypted. The code is open source, so every claim is verifiable.
Frequently Asked Questions
Is this password generator safe to use?
Yes. Passwords are generated with your browser's cryptographically secure random number generator (Web Crypto API), entirely on your device. Nothing you generate is transmitted, logged or stored by any server, and the code is open source.
Which password pattern should I choose?
For accounts stored in a password manager, use Random with symbols at 20+ characters. For passwords you must remember or type often, a Passphrase of 4-6 words is both strong and memorable. Easy-to-say and easy-to-read patterns help when a password must be read aloud or typed from a screen.
How long should a strong password be?
Aim for at least 16 random characters (or 4+ random words for a passphrase). The strength meter shows the estimated entropy in bits — 80 bits or more is considered strong against offline attacks.
Can I save the generated passwords somewhere?
Yes — the Kleopatra app includes a free password manager. Your entries are stored locally on your device and, if you enable online sync, encrypted with AES-256 before upload so the server only ever sees ciphertext.
What makes a passphrase secure?
Each word is chosen uniformly at random from a wordlist, so a 5-word passphrase has around 40-65 bits of entropy depending on the list size. Because it is random — not a quote or a sentence you invented — it resists dictionary and guessing attacks while staying easy to remember.