Password Manager vs. Password Generator: What's the Difference?
The terms "password manager" and "password generator" often get used interchangeably, but they serve different functions. Understanding the distinction — and how the two tools work together — is key to building a solid password security setup.
What a Password Generator Does
A password generator creates new, random passwords on demand. It takes parameters like length, character types, and optionally a word list (for passphrases), and applies cryptographic randomness to produce a password that is:
- Unpredictable — not based on any word, name, or pattern
- Unique — freshly generated each time
- Configurable — you control the length and complexity
Our generator runs entirely in your browser using the Web Crypto API (crypto.getRandomValues()), which is the same cryptographically secure source used by operating systems. The generated password never leaves your device.
What a generator doesn't do: remember your passwords. Once you close the tab, the generated password is gone unless you've copied and stored it somewhere.
What a Password Manager Does
A password manager is an encrypted vault for storing passwords (and other credentials). After you generate a strong password, you save it in the manager along with the site URL and your username. When you visit that site, the manager auto-fills your login.
Leading password managers (Bitwarden, 1Password, Dashlane, etc.) also include a built-in password generator, sync your vault across devices, and warn you about reused or breached passwords.
What a manager doesn't replace: a standalone, independent generator that you can trust to be truly client-side and unaffected by any subscription, app update, or vendor change.
Why You Need Both
Here's the workflow that most security experts recommend:
- Use a standalone generator (like this one) to create a strong, random password
- Immediately save it to your password manager vault
- Use the manager to fill the password when you log in
This separates concerns: the generator is a pure, trustworthy source of randomness. The manager handles the storage and retrieval problem. Neither alone is as powerful as both together.
The One Password You Need to Memorize
Your password manager itself needs a master password — one that you never write down and never store anywhere. This is the ideal use case for a passphrase: a sequence of 5–6 random words that you can memorize and type on any device.
Use our passphrase mode to generate your manager's master password. Then let the manager remember everything else.
Open Source Options
If you're concerned about trusting a commercial password manager with all your credentials, consider Bitwarden — a fully open-source option that you can even self-host. It's free for personal use and audited by third-party security researchers.