Password Generator
Generate cryptographically secure random passwords and memorable passphrases. Customise length, character sets, and strength requirements. Bulk generation, entropy display, and one-click copy. Free. No sign-up. Runs entirely in your browser.
How it works
- 1Configure your settings
Choose your password length with the slider, toggle character sets on or off, and set how many passwords to generate at once.
- 2Review strength and entropy
The colour-coded strength meter and entropy bits display update live so you know exactly how secure your configuration is.
- 3Generate and copy
Click Generate to create your passwords. Copy any password with one click. Switch to passphrase mode for memorable word-based passwords.
Why You Need a Strong Password Generator
Passwords remain the primary line of defence for your online accounts, yet most people still rely on weak, predictable passwords that attackers can crack in seconds. A 2024 study by Hive Systems showed that a brute-force attack can crack an 8-character password using only lowercase letters in under one second. Add uppercase, numbers, and symbols, and that time jumps to minutes. Extend the length to 16 characters with a full character set, and the estimated crack time exceeds trillions of years. The takeaway is clear: length and randomness are everything.
Human-generated passwords are inherently flawed. We tend to use dictionary words, personal dates, and predictable patterns like Password1! or Summer2024. Attackers know this and use dictionary attacks and rule-based mutations that try millions of these common patterns per second. A true random password generator eliminates human bias entirely by selecting each character independently from a cryptographically secure random source.
The Layman SEO Password Generator uses crypto.getRandomValues(), the same randomness source that powers TLS encryption, SSH keys, and blockchain wallets. This is not the predictable Math.random() found in many online generators. Every character in your password is drawn from the operating system's entropy pool, making it truly unpredictable to any attacker regardless of computing power.
For situations where you need to remember a password โ like your password manager's master password โ the built-in passphrase mode generates word-based passwords such as marble-giraffe-sunset-cloud. These are dramatically easier to memorise and type than random character strings while still providing strong entropy when enough words are used. Research by Joseph Bonneau and others at Carnegie Mellon has shown that passphrases with 5 or more randomly chosen words can rival the security of 12+ character random passwords.
The strength meter in this tool calculates entropy bits based on your exact configuration โ the character pool size and password length. Entropy is the gold standard measurement of password strength because it accounts for every possible combination an attacker would need to try. At 128 bits of entropy, your password is considered unbreakable by any technology that exists or is theoretically possible. The colour-coded bar makes it instantly clear whether your settings produce a weak, fair, strong, or very strong password.
Whether you are securing a single admin account or generating credentials for an entire team, the bulk generation feature lets you create up to 20 unique passwords at once, each with its own one-click copy button. All generation happens client-side โ no passwords are ever transmitted to a server.
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