Password Generator
Strong, random passwords generated with your browser's cryptographic random source (crypto.getRandomValues). Nothing is transmitted, logged or stored — reload the page and the password is gone.
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How strong is “strong”?
The meter computes real entropy: length × log₂(alphabet size). A 16-character password using all four sets carries about 100 bits of entropy — more than a trillion times the guessing effort of an 8-character lowercase password. For anything important, aim for the green zone (roughly 75+ bits), and never reuse a password across sites: use a password manager and let each site get its own random string.
This generator uses crypto.getRandomValues — the same cryptographic source browsers use for TLS keys — with rejection sampling to avoid modulo bias. It runs entirely offline: you can save the page and generate passwords on a plane.