Password Generator
Generate strong, random passwords in your browser. Choose the length and character types, set how many passwords to generate, and copy with one click. Nothing is sent to a server — passwords are generated locally and never stored.
How to Use the Password Generator
- Set the password length — 16 characters is the current standard recommendation.
- Choose which character types to include (at least one must be checked).
- Optionally exclude similar or ambiguous characters if you will type the password by hand.
- Set how many passwords to generate at once (up to 50).
- Click "Generate Passwords" and copy the one you want.
Why These Passwords Stay Private
Passwords are generated using your browser's built-in crypto.getRandomValues() API — the same cryptographically secure random number generator used by banking apps and password managers. No password is sent to a server, stored, logged, or visible to anyone. When you close the tab, the passwords are gone. This is different from most online password generators, which send generated passwords to their servers.
What Makes a Password Strong?
- Length matters most. A 16-character password is exponentially harder to crack than an 8-character one, even with the same character types.
- Random is better than clever. "P@ssw0rd!" looks strong but is one of the most-used passwords. Random strings like "xK9#mQ2$vL8@nR4" are far safer.
- Mix character types. Letters, numbers, and symbols expand the search space enormously.
- Never reuse passwords. One password per account. A password manager makes this practical.
- Avoid personal information. Names, birthdays, phone numbers — all findable and guessable.
Frequently Asked Questions
Is this password generator safe to use?
Yes. The generation uses your browser's crypto.getRandomValues() API, which is cryptographically secure. No password is sent to any server. The code runs entirely on your device. That said, no online tool — including this one — is a substitute for a password manager. If you are generating a password for a critical account, generate it, save it in your password manager, and close the tab.
How long should my password be?
16 characters is the current recommendation for most accounts. For critical accounts (email, banking, password manager itself), 20+ characters is better. For anything that will be typed by hand frequently, 12–14 characters with mixed types is acceptable. Length beats complexity — a 20-character password with lowercase only is stronger than an 8-character password with every character type.
What does "exclude similar characters" do?
It removes characters that are easy to confuse when reading or typing: i, l, 1, L, o, 0, O. This is useful if you will write the password down or type it into a device without a password manager. Excluding these characters slightly reduces the search space, so you may want a longer password to compensate.
What is entropy and why does it matter?
Entropy measures the number of possible passwords that could be generated with the chosen settings. It is expressed in bits. Each additional bit doubles the number of possibilities. A password with 80 bits of entropy has 280 possible combinations — about 1.2 septillion. Anything above 80 bits is considered strong for online accounts. Above 100 bits is very strong.
What does "crack time" mean?
Crack time estimates how long it would take an attacker to guess the password by brute force, assuming 10 billion guesses per second (a realistic rate for a modern GPU attacking a fast hash like MD5). For online attacks (where the server rate-limits login attempts), the real crack time is much longer. The estimate assumes offline attack — the worst case.
Should I use this instead of a password manager?
No. A password manager generates, stores, and auto-fills passwords. It is the correct tool for managing passwords long-term. This generator is useful when you need a quick strong password and do not have your password manager open, or when you want to teach someone what a strong password looks like. Generate here, then save the password in your password manager before closing the tab.