Password Generator
Create secure random passwords with your choice of length and character types, generated locally in your browser.
How to use it
- Choose a length Use the slider; longer is stronger.
- Pick character types Mix lowercase, uppercase, digits and symbols.
- Copy your password Press Copy, or Regenerate for a new one.
Examples
| 16 chars, mixed | ~95 bits |
|---|---|
| 8 chars, lowercase | ~38 bits |
About this tool
A good password is long and random. This generator builds one in your browser using the operating system’s cryptographically secure random source — the same kind of randomness used for encryption keys — so the result is unpredictable and never leaves your device.
Choose the length and which character types to include, and the tool shows an estimate of the password’s strength in bits of entropy. For the most secure passwords, use a long length and a mix of character types, and store the result in a password manager.
Frequently asked questions
Are these passwords safe?
Yes. They are generated in your browser using the cryptographically secure random generator, and never sent over the network.
What makes a password strong?
Length and variety. A longer password from a larger character set has more entropy, shown here in bits, and is harder to guess.
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Updated June 12, 2026