Random Password Generator
Create truly random, secure passwords with full control over length and character types — batch-generate up to 20 at once.
Character Types
About this tool
What this tool does
This generates passwords using your browser's built-in cryptographically secure random number generator (crypto.getRandomValues), not the weaker Math.random() many quick-and-dirty generators rely on. Set a length from 6 to 64 characters, choose which character types to include, and optionally exclude similar-looking or ambiguous characters that are easy to mistype.
Who it's for
Anyone setting up a new account, updating a password after a breach notification, or generating a batch of credentials for a team — the batch mode creates up to 20 unique passwords in one go, each with its own strength indicator.
How to use it
- Drag the length slider to your desired password length.
- Toggle which character types to include: uppercase, lowercase, numbers, and symbols.
- Optionally exclude similar characters (like
1,l, andI) or ambiguous symbols if the password will be typed by hand or read aloud. - Copy a single password or copy the whole batch at once.
Real-world examples
Setting up a new email account? Generate one 20-character password with all character types for maximum strength. Handing out temporary Wi-Fi passwords to guests? Turn off symbols and exclude similar characters so they're easy to read and type correctly from a card.
Frequently asked questions
How long should a password be?
Most security guidance now recommends at least 12–16 characters. Longer passwords with a mix of character types are exponentially harder to crack than short, complex-looking ones.
Is this password generator actually secure?
Yes — it uses the Web Crypto API's getRandomValues(), the same cryptographically secure randomness source browsers use for security-sensitive operations, and everything runs locally in your browser. Nothing is ever sent over the network or stored anywhere.
Why exclude similar characters?
Characters like 0/O or 1/l/I look nearly identical in many fonts. Excluding them helps when a password needs to be typed manually from a printout or screen.
Should I reuse a generated password across sites?
No — use a unique password for every account. Pair this generator with a password manager so you don't have to remember each one.
What makes a password "strong"?
Strength comes from entropy: length combined with character variety. The strength meter here estimates entropy in bits based on your password's length and the size of the character pool you selected.