How is strength estimated?

Entropy is calculated from length and character set size. Crack-time uses rough offline and online guessing rates.

Are passwords generated securely?

Yes. The generator uses your browser's cryptographically secure random number source when available.

Yes. Switch to Passphrase and choose the word count, separator, and case options.

Create strong passwords and passphrases. Customize length and characters, avoid look‑alikes, and copy or export.

Length 16 Exclude look‑alikes Require all selected sets

Entropy—

Crack time (offline)—

Crack time (online)—

What are look‑alike characters?

Characters that can be mistaken for each other, like O/0 or l/1. Excluding them makes passwords easier to transcribe.

Why do crack-time numbers vary?

They're rough estimates depending on attacker assumptions. Use them as guidance, not guarantees.

How should I store passwords?

Use a reputable password manager and enable multi-factor authentication where possible.