Password Generator

Cryptographically secure (crypto.getRandomValues), generated entirely in your browser — nothing is sent or stored. Pick the rules a site demands and copy.

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Length 20 lowercase a–z UPPERCASE A–Z digits 0–9 symbols !@#$%… avoid ambiguous 0O 1lI 5S 2Z 8B 6G… Generate at once

How strong is strong enough?

Estimated entropy describes the random search space from the length and alphabet. The display is an upper estimate: requiring characters from each selected set reduces that space. It is not a time-to-crack prediction.
Online guessing depends on login rate limits. Offline cracking after a breach also depends on how the service hashes passwords and the attacker's hardware. There is no universal safe bit threshold.
A randomly generated 20-character lowercase password has about 94 bits before extra constraints. This estimate does not apply to a phrase or pattern you invent yourself.
Avoid ambiguous removes look-alike characters to make transcription easier. Keep any spoken, printed or written password private.
Use a password manager for a long, unique password on each account, and enable multifactor authentication where available. Length cannot prevent phishing or malware. See NIST's password-strength guidance.

Runs 100% in your browser — your passwords are never sent over the network or saved anywhere. Close the tab and they're gone.