Random Password Generator
Create a random password from 8 to 128 characters using the browser's cryptographic random-number generator. Choose uppercase letters, lowercase letters, numbers and symbols, and optionally remove commonly confused characters such as I, l, 1, O and 0.
The generator guarantees at least one character from every enabled group before securely shuffling the result. The displayed entropy is a mathematical estimate based on length and pool size; password policies, reuse, phishing and storage practices still affect real security.
How to use this calculator
- Choose a length and the character groups allowed by the destination site.
- Generate a password and review its estimated entropy.
- Use the copy button, then store the password in a trusted password manager.
Method and sources
- NIST Digital Identity Guidelines: Authentication — Password length, screening and usability guidance
- MDN: Crypto.getRandomValues — Browser cryptographic random source
Frequently asked questions
Does the generated password leave my device?
No. Generation happens in the browser and Daymetric does not transmit or store the generated password.
Why guarantee one character from each selected group?
Some websites require specific character classes. The guarantee makes the output satisfy every option you enabled.
Is the strength label a guarantee?
No. It estimates search space from length and pool size. Unique passwords, secure storage and multifactor authentication remain important.