About Password Generator

Password Generator creates strong, unpredictable passwords using your browser's Web Crypto API — the same cryptographically secure random number source browsers use for encryption, not the predictable Math.random(). Choose a length anywhere from 4 to 64 characters, and pick any mix of lowercase letters, uppercase letters, numbers and symbols to include. Turn on "exclude ambiguous characters" to drop lookalikes like l, 1, I, O and 0 when a password needs to be read or typed by hand. A live strength meter shows how resistant the result is to guessing based on its length and character variety. Every password is generated, displayed and copied locally — it's never sent to a server, logged, or stored anywhere.

How to generate a password

1
Set your options
Pick a length and choose which character types to include — lowercase, uppercase, numbers and symbols.
2
Review the result
A new password appears instantly and updates as you change any setting, along with a strength rating.
3
Copy it
Click the copy icon to copy the password to your clipboard, or the refresh icon for a different one.

Why use NoInstallTools

Private by design

Passwords are generated and copied locally — never sent to a server, logged, or stored anywhere.

Cryptographically random

Built on your browser's Web Crypto API, not Math.random(), for genuinely unpredictable results.

Full control

Custom length from 4 to 64 characters, and any mix of uppercase, lowercase, numbers and symbols.

Free, always

Generate as many passwords as you like, with no limits or hidden fees.

Related tools

Password Strength Checker

See how strong your password really is, with an estimated time to crack — checked entirely in your browser, never sent or stored.

FAQ

How is my password generated?: Using the Web Crypto API's getRandomValues(), a cryptographically secure random number source built into your browser — not the predictable Math.random().
Does noinstall.tools see or store my password?: No. It's generated, shown and copied entirely in your browser, and is never sent to a server or saved anywhere.
How long should my password be?: At least 12-16 characters, mixing letters, numbers and symbols, is a reasonable default for most accounts — the strength meter shows how the current settings measure up.
What does "exclude ambiguous characters" do?: It drops lookalike characters such as l, 1, I, O and 0 from the results, which helps when a password needs to be read aloud or typed by hand instead of pasted.
Can I generate a password without symbols?: Yes. Turn off any character type you don't want — just leave at least one turned on so there's something to draw from.
Will I get the same password twice?: Practically never. With a reasonable length and character mix, the number of possible passwords is astronomically large, so repeats aren't a realistic concern.

Password Generator