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Guide
About the Password Generator
A strong password is simply one that's hard to guess — and the most reliable way to achieve that is to make it long and random. Human-chosen passwords tend to follow predictable patterns that attackers exploit; a randomly generated string does not. This generator builds passwords using your browser's cryptographically secure random number generator, so the output is genuinely unpredictable rather than pseudo-random.
You control the length and which character sets to include — uppercase, lowercase, digits, and symbols — and a live strength indicator estimates how much entropy the result has. Every password is generated locally and never transmitted.
What makes a password strong?
Strength comes down to entropy— the number of equally likely possibilities an attacker would have to search. Entropy grows with both the length and the size of the character set. Length matters most: adding characters multiplies the search space far faster than swapping in a few symbols. As a rule of thumb, aim for at least 16 characters for important accounts, and let a password manager remember them so length isn't a burden.
Passphrases and reuse
Two habits matter more than any single password: never reuse a password across sites, and use a password manager to store unique ones. If a site is breached, a unique password limits the damage to that one account. For passwords you must type by hand, a long random passphrase can be easier to enter than a dense symbol string while remaining strong.
How to use it
- 1Set the desired length — longer is stronger.
- 2Choose which character sets to include (uppercase, lowercase, digits, symbols).
- 3Check the strength indicator, and regenerate until you are happy.
- 4Copy the password and store it in your password manager.
Frequently asked questions
Are these passwords safe to use?
Yes. They are generated with crypto.getRandomValues, a cryptographically secure source, entirely in your browser. Nothing is sent to a server, logged, or stored.
How long should my password be?
For important accounts, 16 characters or more is a good target. Length adds strength faster than anything else, and a password manager removes the pain of typing long passwords.
Should I include symbols?
Symbols increase the character set and add some strength, but length is more important. If a site rejects certain symbols, a longer alphanumeric password is a fine alternative.
Is it safe to generate a password on a website?
It depends on the site. This tool runs entirely client-side with no network requests, so the password never leaves your browser — you can even use it offline. Always prefer generators that work locally.
Should I reuse a strong password everywhere?
No. Reuse is the biggest real-world risk: one breached site exposes every account sharing that password. Generate a unique password per site and store them in a password manager.