Tools · Generators · Everyday life Last update: Nov 6, 2026

16 Character Password Generator

Generate a random 16-character password with letters, numbers and symbols.

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Length
Characters
5 more to choose from

    Generated in your browser with a cryptographically secure random generator. Nothing is sent or stored.

    Why 16 characters?

    Sixteen random characters from the full set of letters, numbers and symbols give about 100 bits of entropy — a comfortable margin for important accounts such as email, banking, cloud storage and password managers.

    Because you will store it in a password manager rather than remember it, a longer password costs you nothing extra.

    Number of combinations

    • Letters and numbers: 62¹⁶ ≈ 4.8 × 10²⁸
    • Letters, numbers and symbols: 75¹⁶ ≈ 1 × 10³⁰

    If a service limits which symbols you can use, untick Symbols: a 16-character password of letters and numbers still has about 95 bits.

    Frequently asked questions

    Is a 16-character password secure?

    Yes. A random 16-character password is far beyond the reach of brute-force attacks.

    What if a site only allows up to 12 characters?

    Use the maximum length the site allows and turn on two-factor authentication.