Password Generator
Create strong, unique passwords instantly — with strength and entropy analysis
Strength: Strong
Security Metrics
Entropy
— bits
Est. Time to Crack
—
Recent Passwords
For best security, store generated passwords in a dedicated password manager rather than reusing them from memory.
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Frequently Asked Questions
How is the password generated?
Using your browser’s cryptographically secure random number generator (crypto.getRandomValues), so each character is chosen unpredictably from your selected character sets — never sent to any server.
What length should I use?
A length of 16-24 characters with all character types enabled is recommended for strong security against modern brute-force attacks.
What does “entropy” mean?
Entropy (measured in bits) quantifies password randomness — higher entropy means exponentially more possible combinations an attacker would need to try, making the password harder to crack.
Should I exclude ambiguous or similar characters?
Only if you need to manually type or read the password aloud — excluding characters like O/0 or l/1/I avoids confusion, at a very slight cost to overall entropy.