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Developer Tool
Password Generator
Generate strong, cryptographically secure passwords instantly — 100% client-side.
Strength
Weak~0 bits
Length14
416324864
Character Sets
Exclusions
Exclude ambiguous ({ } [ ] ( ) / \ ' " ` ~ , ; : . < >)
Exclude similar (i, l, 1, L, o, 0, O)
💡Security Pro-Tips
- •Use at least 12 characters for standard accounts, 16+ for high-value ones.
- •Avoid personal info — no birthdays, names, or dictionary words.
- •Use a different password for every service and store them in a password manager.
- •Enable two-factor authentication (2FA) wherever possible.
Generate Multiple Passwords
Set a count and click Generate
Security & FAQ
How secure are these passwords?
The generator uses crypto.getRandomValues() — the browser's cryptographically secure pseudo-random number generator (CSPRNG). This is unpredictable and meets security standards for cryptographic use. It is fundamentally different from Math.random() which is predictable.
Are generated passwords stored anywhere?
Never. All generation happens entirely inside your browser. No data is sent to any server, no logs are kept, and no passwords are stored. Once you close the tab they are gone.
What is entropy and why does it matter?
Entropy measures how unpredictable a password is in bits. It's calculated as: length × log₂(charset size). Each extra bit doubles the number of guesses needed. 80+ bits is considered very strong against even state-level attackers.
What are ambiguous characters?
Characters like quotes, brackets, and slashes that can be misread or are problematic in certain terminals and config files. Excluding them makes passwords easier to type without sacrificing meaningful entropy.
What is URL-safe vs standard characters?
Characters like + and / have special meanings in URLs and Base64. The symbols set here is carefully chosen to avoid the most problematic characters while maintaining strong entropy.
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