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Free secure password generator. Create strong random passwords of 8 to 128 characters with the letters, numbers and symbols you choose. Private, in your browser.
Enter your values and select Calculate to see the result.
Weak or reused passwords are one of the most common causes of hacked accounts. A random password of sufficient length is far harder to guess than a word or pattern a person would choose.
Choose the length and the character types, then generate. The tool guarantees at least one character of each selected type and shows an entropy-based strength estimate. The password is created in your browser using a cryptographic random generator and is never sent to a server. Store it in a password manager rather than reusing it.
each character is chosen uniformly at random; entropy = length × log₂(pool size)
A 16-character password using all four character types has about 104 bits of entropy.
Yes. Characters are chosen with your browser's cryptographic random number generator, using a method that avoids bias, so every character in the pool is equally likely.
No. It is created in your browser and is never uploaded or saved. Copy it straight into your password manager.
At least 12 to 16 characters for important accounts. Length matters more than complexity: each extra character multiplies the number of possible passwords.
Bits of entropy measure how hard a password is to guess. Each extra bit doubles the guesses needed. Around 80 bits or more is considered very strong for online accounts.