Password Generator
Generate strong, random passwords using cryptographically secure randomness — never sent anywhere.
All passwords generated locally in your browser using crypto.getRandomValues() — never transmitted.
Password security tips
A 16-character password takes billions of years to brute-force even without symbols. Aim for at least 16 characters for important accounts.
Generate and store a unique password for every account. LastPass, Bitwarden, and 1Password are popular choices. Never reuse passwords.
Two-factor authentication protects you even if your password is leaked. Use an authenticator app (not SMS) for maximum security.
Frequently asked questions
Is it safe to use an online password generator?
This generator uses crypto.getRandomValues(), the same cryptographic API used by browsers for secure operations. No password is sent to any server — everything runs in your browser. You can even disconnect from the internet and use this page.
What makes a password strong?
Length is the most important factor. A 20-character lowercase-only password is stronger than a 12-character one with all character types. The combination of length (16+) and all four character types (upper, lower, number, symbol) creates the strongest passwords.
Should I include symbols in my password?
Yes, when the site allows them. Symbols dramatically increase the character space (from 62 to 94 possibilities per character), making brute-force attacks exponentially harder.
How often should I change passwords?
Modern security guidance (NIST 2024) says you don't need to change passwords on a schedule unless there's a breach. Instead, use a unique, strong password for every account and change it immediately if you suspect compromise.
What is the difference between random and pseudorandom?
Pseudorandom generators (Math.random()) use a predictable algorithm. crypto.getRandomValues() uses OS-level entropy (hardware noise, timing events) to produce true cryptographic randomness that cannot be predicted.