Create a strong random password with the length and character types you choose.
Made with your browser's cryptographic random source. Nothing is sent or stored — copy it into your password manager.
Pick a length and which character types to include, and a new password appears. Every character is chosen with your browser's cryptographic random source, and the generator guarantees at least one of each type you turned on.
The strength bar is based on entropy: how many equally likely passwords the generator could have produced. More length and more character types both push it up; length matters most.
Nothing leaves your device. Copy the password straight into your password manager and close the tab.
This one runs entirely in your browser using the Web Crypto API. The password never touches a server and is not stored anywhere — you can confirm by loading the page and switching off your connection.
Sixteen characters with all four types is very strong for anything with a login limit. Go longer for anything that could be attacked offline, like an encrypted archive.
If you are copying into a password manager, look-alikes do not matter. If you must type it by hand, turn symbols off and increase the length instead.
