How to Generate a Strong, Random Password
A strong password is long, random and unique to each account. Guessable patterns and reused passwords are what get accounts breached — here's how to generate one properly, in seconds.
Last updated: July 2026
The strongest passwords are long and random, not clever. Use a generator that draws from the browser's cryptographically secure Web Crypto API and set at least 16 characters mixing upper- and lowercase letters, digits and symbols — that yields roughly 105 bits of entropy, far beyond brute-force reach. Use a unique password per account and store them in a password manager.
Generate strong, random passwords with custom length and character sets, using the secure Web Crypto API. Free and fully private.
Step by step
- Open the free Password Generator.
- Set the length to 16 characters or more.
- Enable uppercase, lowercase, numbers and symbols.
- Copy the password and store it in your password manager.
What actually makes a password strong?
Length and randomness beat complexity rules. Each extra character multiplies the number of possibilities, so a long random string is far harder to crack than a short one with a few substitutions. Entropy — measured in bits — quantifies this; aim for 80+ bits, which a 16-character mixed password comfortably exceeds.
Why use a generator instead of making one up?
Humans pick predictable patterns (names, dates, keyboard walks) that attackers model. A generator using crypto.getRandomValues produces genuinely unpredictable output, so there's no pattern to exploit.
FAQ
Is the password sent anywhere?
No — it's generated locally in your browser and never transmitted or stored.
How long should my password be?
16+ characters for important accounts. Longer is stronger; a password manager means length costs you nothing.
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