Password Generator
Hard-to-guess passwords from a cryptographic RNG (Web Crypto), generated on the spot.
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About security
- Passwords use
crypto.getRandomValues()with unbiased rejection sampling. - Generating, showing and copying all happen in your browser. Nothing is sent to a server.
- Strength is estimated in bits of entropy. Aim for 70 bits or more.
FAQ
- How long should it be?
- For important accounts, 16+ characters with upper, lower, digits and symbols. A password manager makes long passwords painless.
- Could the same password come up again?
- In theory yes, but with enough length and character variety it effectively never happens.