ToolNestr

Password Generator

Create a strong, random password. Choose the length and character types, then copy it. Passwords are generated securely in your browser and never leave your device.

About this password generator

Reusing simple passwords is one of the biggest security risks online. This generator creates strong, unique, random passwords using your browser’s secure random number generator — so nothing is ever transmitted or stored. Pick a length, choose which character types to include, and copy your new password straight into a password manager.

How to use it

  1. Set the length (12–16+ is recommended).
  2. Choose which character types to include.
  3. Click ↻ for a new password and “Copy” to grab it.
  4. Store it safely — ideally in a password manager.

Frequently asked questions

Are these passwords safe to use?

Yes. They’re generated using your browser’s cryptographically secure random generator, and nothing is sent to any server or saved anywhere.

What makes a strong password?

Length matters most. Aim for at least 12–16 characters and mix uppercase, lowercase, numbers and symbols.

What does “avoid ambiguous characters” do?

It removes look-alike characters such as l, 1, I, O and 0, so the password is easier to read and type correctly.

Is the password stored anywhere?

No. Once you leave or refresh the page it’s gone. Save it somewhere safe, ideally a password manager.

Related tools

Browse more developer tools →