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CalcVerse

Passwortgenerator

Generate strong, random passwords in your browser using your device's cryptographically secure random number generator. Passwords are never sent anywhere or stored.

20
Enthalten

Ihr Passwort

Auf Ihrem Gerät mit einem kryptografisch sicheren Zufallsgenerator erzeugt. Nichts wird gesendet oder gespeichert.

Die folgende Anleitung ist noch nicht auf Deutsch verfügbar und wird auf Englisch angezeigt. Der Rechner selbst ist vollständig übersetzt.

So verwenden Sie diesen Rechner

  1. Choose a length (16 or more characters is recommended).
  2. Choose which character types to include. At least one character of each selected type is guaranteed.
  3. Optionally avoid look-alike characters (I, l, 1, O, 0, o) for passwords you'll type by hand.
  4. Copy the password into your password manager.

Formel

Password strength is measured as entropy: how many guesses an attacker would need on average. Each character drawn uniformly from a pool of N symbols adds log₂(N) bits.

Entropy = length × log₂(pool size)
20 characters from 88 symbols ≈ 129 bits

Häufige Fragen

Is this generator secure?

Yes. It uses the Web Crypto API (crypto.getRandomValues) with rejection sampling to avoid bias. Everything runs locally; the password never leaves your device.

How long should a password be?

Current guidance (such as NIST SP 800-63B) favours length. For accounts protected by a password manager, 16–20+ random characters is excellent.

Should I reuse passwords?

Never. Use a unique password for every account, store them in a password manager, and turn on two-factor authentication where available.