Strong Password Generator

Create solid, truly random passwords in one click: length, character types, and displayed strength. Everything is generated in your browser, nothing is sent or stored.

  • Up to 64 characters
  • Strength in bits
  • Local generation
  • No sign-up

Very strong · 104 bits of entropy · time to crack: billions of years

Generated in your browser with its cryptographic generator: no password is sent or saved. Crack time estimated for an attack at 100 billion attempts per second.

100% private — Everything is processed directly in your browser: your files, voice, and image are never sent to Chatzam's servers.

How to generate a secure password?

  1. Choose the length

    Set the length between 6 and 64 characters: 16 or more is a good choice for an important account.

  2. Choose the characters

    Uppercase, lowercase, digits, symbols, and if needed exclude ambiguous characters like 0 and O or l and 1.

  3. Copy it

    Copy the password in one click and save it directly in your password manager.

Passwords that are truly random

Cryptographic generator

The randomness comes from your browser's cryptographic generator, built for security, not from a simple random function.

Measured strength

The entropy in bits and an estimated time to crack it show whether the password is strong enough.

Several at once

Generate a batch of passwords in one go and keep the one that suits you.

Nothing leaves your device

Passwords are created on your device: they're never sent or saved.

What makes a strong password?

A strong password is long, random, and unique. Length matters more than anything: every extra character multiplies the number of combinations to try. A 16-character password mixing uppercase, lowercase, digits, and symbols is out of reach of a brute-force attack, while a first name followed by a birth date can be guessed in seconds. Entropy, expressed in bits, sums up this strength: beyond about 100 bits, a password is considered very robust.

A different password for every account

Reusing the same password is the main danger: when a site gets hacked, the stolen credentials are immediately tried against your email, your bank, or your social media. Use a unique password per account, store them in a password manager (Bitwarden, 1Password, KeePass, or the one built into your browser or phone), and turn on two-factor authentication for important accounts. Then you only have one master password left to remember.

A generator that never sees your passwords

Generation happens entirely in your browser, using its cryptographic random number generator, the same one used for encryption. No password is sent to Chatzam, stored, or logged: what appears on screen exists only on your device.

Frequently Asked Questions

Is this password generator safe?

Yes. Passwords are created locally by your browser's cryptographic generator; they're never sent over the internet or saved.

What length should I choose for a password?

At least 12 characters for an everyday account, 16 or more for your email, your bank, or your password manager. The longer a password, the harder it is to crack.

Why exclude ambiguous characters?

Characters like 0 and O or l and 1 are easily confused. Excluding them avoids mistakes if you need to copy or dictate the password, at the cost of very slightly reduced strength.

How do I remember such complicated passwords?

No need to remember them: save them in a password manager, which will fill them in for you. Only the master password needs to be memorized; make it long and unique.

Is the generator free?

Yes, free, unlimited, and with no sign-up.

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