Generate strong, random passwords — everything runs locally in your browser.
Password security comes from entropy — the number of possible combinations an attacker must try. A 12-character password using uppercase, lowercase, numbers, and symbols has about 79 bits of entropy, meaning roughly 600 sextillion possible combinations. At 10 billion guesses per second, that takes centuries to crack.
Length matters more than complexity. A 20-character lowercase password has more entropy than an 8-character password with every character type. The math: 26^20 (lowercase only, 20 chars) vastly exceeds 94^8 (all printable ASCII, 8 chars). This is why modern guidance favors long passphrases over short complex passwords.
This generator uses your browser's crypto.getRandomValues() — a cryptographically secure random number generator. Unlike Math.random(), it's suitable for security-sensitive applications. Never use online generators that don't run client-side — if the password touches a server, it's potentially compromised.
This tool in other languages:
Français:
Générateur de mots de passe
Español:
Generador de contraseñas
Deutsch:
Passwort-Generator
Português:
Gerador de senhas
日本語:
パスワード生成ツール
中文:
密码生成器
한국어:
비밀번호 생성기
العربية:
مولد كلمات مرور
Adjust the length slider and toggle character sets (uppercase, lowercase, numbers, symbols). Click Generate to produce a new password. Click Generate 10 passwords for a batch. The generator uses the browser's cryptographic random API — output is unpredictable and suitable for real accounts.
Length beats complexity. A 16-character password with mixed case and numbers is stronger than an 8-character password with every symbol. Aim for 16+ characters. Avoid real words, names, dates, and anything personally identifiable. Use a different password for every account.
This one is, because generation happens 100% client-side using crypto.getRandomValues(). The password is created in your browser and never transmitted. Avoid any generator that sends data to a server or requires an account — that defeats the entire purpose.
Minimum 12 characters for low-stakes accounts, 16+ for important ones (email, banking, work), and 20+ for your password manager's master password. Each added character multiplies brute-force time dramatically — 16 characters is effectively uncrackable with current hardware.
No — random passwords are meant to go into a password manager (1Password, Bitwarden, Apple/Google Keychain). The manager remembers them for you and auto-fills. The only password you need to memorize is the master password for the manager itself, which should be a long passphrase you can recall.
Yes — a random 32+ character string from this generator is fine as an API key, session token, or secret identifier. For cryptographic keys (encryption, signing), use dedicated key generation with the right bit length; don't reuse passwords as keys.