Free Online Password Generator — Strong, Secure & Random
Generate a strong password instantly. This free password maker runs entirely in your browser — no data is sent anywhere. Click Generate or adjust the complexity slider below.
Copied!
Strong
—Entropy: —Entropy measures password randomness in bits. Higher = harder to guess.Crack time: —Estimated time to brute-force at 10 billion guesses/sec.
Use this built-in password strength checker to see your password's entropy and estimated crack time.
16
Why "Pass1234" Is Not a Secure Password
"Pass1234" is one of the most common passwords in the world — and that is exactly why we named this tool after it. It has uppercase, lowercase, digits, and 8 characters. It technically passes most password requirement checks. But it can be cracked in under a second. Predictable patterns are never secure, no matter how many rules they follow. This generator exists to replace every "Pass1234" with something unbreakable.
How This Password Generator Works
Cryptographically secure — uses the Web Crypto API (crypto.getRandomValues), the same randomness source trusted by banks and security software.
100% client-side — everything runs in your browser. No network requests, no server, no third parties.
Zero storage — generated passwords are never saved, logged, or transmitted. Close the tab and it's gone.
Why You Need a Random Password Generator
Over 80% of data breaches involve weak or reused passwords. When attackers steal credentials from one site, they immediately test those same email-password combinations on hundreds of others — a technique called credential stuffing. If you reuse passwords, one breach compromises every account.
Humans are also terrible at creating random passwords. We fall into patterns: dictionary words, birthdates, keyboard walks like "qwerty123." Attackers know these patterns and exploit them. A dedicated password generator removes human bias entirely, producing credentials that are truly unpredictable.
Every password created by this free online password generator is unique, cryptographically random, and built using the same security standards trusted by banks and enterprise software. No password is ever stored, logged, or transmitted — it exists only in your browser until you close the tab. For maximum security, use a unique generated password for every account and store them in a reputable password manager.
Password Generator FAQ
A strong password is at least 12 characters long and includes a mix of uppercase letters, lowercase letters, digits, and symbols. It should be randomly generated — not based on dictionary words, personal info, or predictable patterns. An 8-character password has about 48 bits of entropy, while a 16-character password with all character types has about 96 bits — making it exponentially harder to crack.
Yes. Pass1234 runs entirely in your browser using the Web Crypto API for cryptographically secure randomness. No passwords are sent to any server, stored in any database, or logged anywhere.
No. Passwords exist only in your browser tab's memory. Once you close the tab or generate a new password, the old one is gone. There are no cookies, no tracking scripts, and no server-side storage.
For most accounts, 12–16 characters is a solid minimum. For high-security accounts (banking, email, password manager master password), aim for 20+ characters. Longer passwords exponentially increase the time needed to brute-force them.
Entropy measures password randomness in bits. Higher entropy means more possible combinations and a harder password to crack. A password with 80+ bits of entropy is considered very strong against brute-force attacks.
A password generator uses a cryptographically secure random number generator to pick characters from a defined set (uppercase, lowercase, digits, symbols). Unlike human-chosen passwords, generated passwords have no patterns, dictionary words, or personal information — making them virtually impossible to guess or crack through brute force.
Yes. A password manager stores all your unique, randomly generated passwords in an encrypted vault so you only need to remember one master password. This lets you use a different strong password for every account — which is the single most effective way to protect yourself online.
A password is typically a short string of mixed characters (e.g., xK9#mP2v), while a passphrase uses multiple random words (e.g., correct-horse-battery-staple). Passphrases are often easier to remember while still providing strong security. Both approaches work well when generated randomly — the key is length and randomness, not complexity alone. This tool generates random character passwords; for passphrases, dedicated generators or password managers can help.
Modern security guidance (NIST SP 800-63B) recommends against routine password rotation. Change your password only when you have reason to believe it has been compromised — such as after a data breach notification. Using a unique, randomly generated password for each account is far more important than changing passwords on a schedule.