Password Generator

Generate strong, random passwords and passphrases instantly in your browser.

Configure Password

Amount:

Length 16

Password Strength 0 bits

Good

Characters Used

Uppercase (A-Z) Lowercase (a-z) Numbers (0-9) Symbols (!@#$)

Word Count 4

Passphrase Strength 0 bits

Good

Formatting Options

Separator Capitalize Words Append a Number

Why use a Password Generator?

Using a password generator is one of the most effective ways to secure your online accounts. Human beings are predictably bad at coming up with passwords that are truly random. We often use personal information, sequential numbers, or common dictionary words—making our accounts vulnerable to dictionary attacks and brute forcing.

A good password generator relies on a strong random number generator to create complex strings of characters or seemingly nonsensical passphrases that are mathematically virtually impossible to guess.

Password vs. Passphrase

Random Passwords

A traditional random password consists of a mix of uppercase letters, lowercase letters, numbers, and symbols (e.g., k#9$LmP2@zQ1!x). They offer excellent entropy per character, making them highly secure even at moderate lengths (like 16 characters). However, they are generally difficult to memorize and tedious to type manually, making them best suited for use with a Password Manager.

Passphrases

A passphrase is a sequence of random words (e.g., correct-horse-battery-staple). Because it uses entire words from a large list, it can achieve high entropy simply through length, while remaining memorable and easier to type. A passphrase of 4 or 5 completely random words is often considered stronger than a typical 12-character random password, and it is significantly easier for humans to remember for master passwords.

Understanding Password Entropy

Password entropy is a measurement of how unpredictable a password is, expressed in bits. It indicates how many attempts, on average, a computer would need to guess the password.

< 40 bits: Weak. Can be cracked instantly or within minutes.
40 - 60 bits: Moderate. Might withstand casual guessing, but vulnerable to dedicated offline attacks.
60 - 80 bits: Good. Secure against most practical attacks.
> 80 bits: Strong. Considered highly secure. Even with massive computing power, cracking would take centuries.

Client-Side Security Guarantee

This generator operates entirely in your web browser utilizing the Web Crypto API (window.crypto.getRandomValues) to ensure cryptographically secure randomness. No passwords, passphrases, or settings are ever transmitted to our servers or stored in your browser's local storage. Once the page is loaded, the tool functions 100% offline, guaranteeing your complete privacy.