Generate passwords that can't be cracked
Cryptographically secure, generated in your browser. Random or passphrase mode, real-time strength analysis, and batch generation. Free, no signup.
Everything you get, instantly
Remove 0/O, 1/l/I, |
Excellent — suitable for high-value accounts.
Uses crypto.getRandomValues() — the same standard powering SSL/TLS. Far more secure than Math.random().
Full control over length (4-64), character types, and lookalike exclusion for maximum entropy.
Combine real English words into memorable passphrases. 4+ words provides strong security.
See exact entropy in bits and a visual strength meter that updates as you adjust settings.
Generate 1, 5, 10, or 20 passwords at once. Each gets its own strength rating.
Remove easily confused characters (0/O, 1/l/I, |) for passwords that need to be typed manually.
Export all generated passwords with strength analysis as a .txt file.
No password ever leaves your browser. Works offline. No server, no logging, no tracking.
Never reuse passwords. One breach shouldn't compromise everything.
Length is the biggest factor in password strength. Every char exponentially increases security.
Two-factor authentication adds a second layer of defense.
Skip qwerty, 123456, names, dates. These are the first things attackers try.
Store all passwords encrypted under one master password.
Use Have I Been Pwned to check if passwords appear in known breaches.
Entropy measures unpredictability in bits. Each bit doubles possible combinations. 40 bits = ~1 trillion combinations (crackable in hours). 80 bits = ~1 septillion (billions of years).
| Entropy | Strength | Example | Crack time |
|---|---|---|---|
| 30-39 bits | Weak | 8 chars, letters only | Minutes to hours |
| 40-59 bits | Fair | 12 chars, mixed | Days to weeks |
| 60-79 bits | Strong | 16 chars, full charset | Years to centuries |
| 80+ bits | Very Strong | 20+ chars or 5+ words | Billions of years |
Anyone who creates accounts online. Strong, unique passwords are the first line of defense against account takeovers, identity theft, and data breaches.
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