A password generator that never sees your password
Generating a password on a website inherently involves a bit of trust — you're hoping whatever you're shown isn't quietly logged somewhere. This tool removes that question entirely: every password is generated using your browser's own cryptographically secure random number generator, directly on your device. Nothing is ever sent to a server, because there's no server involved in the generation at all.
How it works
- Set the length. Drag the slider — longer is generally stronger.
- Choose character types. Include lowercase, uppercase, numbers, and symbols as needed.
- Copy or regenerate. A new password is generated instantly as you adjust any option, or click "Generate" for a fresh one with the same settings.
Why length matters more than complexity
It's a common misconception that a short password packed with symbols is safer than a longer, simpler one. In practice, length increases the number of possible combinations an attacker would need to try far more dramatically than adding a few extra symbol characters does. A random 16-character password is, in almost every practical sense, much harder to crack than an 8-character one, even if the shorter one looks more "complicated" at a glance.
Keeping track of unique passwords
Generating one strong password is easy — the harder part is having a different one for every account, which is genuinely important, since a breach at one service shouldn't put your other accounts at risk too. Most people solve this with a password manager, which securely stores generated passwords so you only need to remember one master password yourself. This tool is a good fit for creating the individual passwords a manager would then store for you.
Your generated passwords are never stored
Because everything happens locally, this tool has no record of any password it's ever generated — including yours. See our Privacy Policy for full details on how QuickZeta handles data.
Frequently asked questions
+Is this password generator really free, with no sign up?
Yes. There's no account and no limit on how many passwords you can generate.
+Is it safe to generate a password this way, or does it get sent anywhere?
Every password is generated entirely inside your browser using the Web Crypto API — the same cryptographically secure random number source browsers use for security-sensitive operations. Nothing is transmitted, logged, or stored anywhere, including by us.
+How long should my password be?
Longer is generally better than more complex. A random 16-character password with a mix of character types is far harder to guess or crack than a short, complex-looking one — length matters more than most people expect.
+What does the strength indicator actually measure?
It estimates entropy — roughly, how many possible combinations an attacker would need to try — based on your password's length and which character types you've included. It's a reasonable guide, not a guarantee against every possible attack.
+Why would I want to exclude look-alike characters?
Characters like lowercase L, uppercase I, the number 1, and the letter O versus the number 0 can be easy to misread, especially when typing a password from a printed copy or reading it aloud. Excluding them trades a small amount of randomness for fewer transcription mistakes.
+Should I reuse a strong password across multiple accounts?
No — even a very strong password should be unique per account. If one service is ever breached, a reused password lets an attacker try it elsewhere too. A password manager is the standard way to keep track of many unique passwords without needing to memorize them all.