Secure Password Generator
Generate cryptographically strong passwords, passphrases, and PINs in your browser.
About this tool
Protect your online accounts with cryptographically randomized passwords generated entirely on your machine.
How to use this tool
- Select length and character sets
- Click Generate
- One-tap copy to clipboard
How it works
Uses window.crypto.getRandomValues for true hardware-grade pseudorandom entropy.
When to use this tool
- Creating secure logins for developers and everyday users
Frequently asked questions
Can Tool Fly see my generated password?
No. The password is generated in your browser and is not sent to us.
Where does the randomness come from?
From the Web Crypto API of your browser, which is the platform cryptographic random number generator.
Is a passphrase as strong as a random password?
It depends on the size of the word list and the number of words you pick, while a random password depends on its length and character set.
Limitations
Entropy is derived from client platform crypto RNG.
Privacy
The work happens in your browser, and the input is not sent to us.