How to Create Strong Passwords
A password generator creates cryptographically random passwords that are practically impossible to crack through brute-force attacks. Strong passwords are the first line of defense against unauthorized account access, and our free generator makes creating them effortless. The password is generated entirely in your browser — it is never transmitted to any server.
Why Humans Are Bad at Creating Random Passwords
When asked to create a "random" password, people tend to use dictionary words, predictable substitutions (password → p@ssw0rd), keyboard patterns (qwerty, 123456), personally meaningful dates or names, and common suffixes like "!" or "1". These patterns are well-known to attackers and are the first targets of dictionary and rule-based attacks. True randomness requires a source that has no pattern.
How Our Generator Achieves True Randomness
Our generator uses window.crypto.getRandomValues() — the Web Crypto API built into every modern browser. This is a cryptographically secure pseudo-random number generator (CSPRNG) that meets the requirements for use in security-sensitive applications. It is fundamentally different from Math.random(), which is not cryptographically secure.
How Long Should Your Password Be?
At minimum, use 12 characters for personal accounts and 16+ for sensitive accounts (banking, email, healthcare). Each added character exponentially increases the number of possible combinations: a 12-character mixed password has ~10²¹ combinations; a 16-character one has ~10²⁸. At one billion guesses per second, cracking a 16-character mixed password would take longer than the age of the universe.
Using Our Free Password Generator
Set your desired length (4–64 characters), choose which character types to include (uppercase, lowercase, numbers, symbols), and the password generates instantly. Click the copy button or regenerate as many times as needed. Use a different password for every account and store them in a reputable password manager.
Frequently Asked Questions
How secure are generated passwords?
Very secure. We use window.crypto.getRandomValues() (the Web Crypto API) for true cryptographic randomness. A 16-character password using all character types has approximately 10²⁸ possible combinations — effectively uncrackable with current technology.
Are passwords stored anywhere?
No. Passwords are generated entirely in your browser using client-side JavaScript and are never transmitted to any server. We have no way to see or store your generated passwords.
What makes a password strong?
Length (12+ characters), randomness (generated, not guessed), and character variety (uppercase, lowercase, numbers, symbols). Avoid dictionary words, names, dates, and keyboard patterns.
How many characters should my password be?
At least 12 for general accounts, 16+ for high-security accounts (email, banking, healthcare). Each additional character dramatically increases the time required to crack it.