Create strong, cryptographically random passwords instantly to protect your sensitive online accounts and data.
Strong
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Last updated: July 2026
Why You Need a Strong Password Generator
Compromised and reused passwords remain one of the leading causes of account takeovers. Using simple passwords like "password123," or reusing the same password across multiple sites, puts your personal and financial information at real risk. This generator creates long, unpredictable passwords using your browser's cryptographically secure random number generator — not a general-purpose random function — so the output isn't just complex, it's genuinely hard to predict.
What Makes a Password Strong?
Length: the single most important factor. Current NIST guidance recommends at least 15 characters for a password used as your only login factor, with 16+ suggested for important accounts. Every additional character increases the time required to crack a password.
True randomness: humans are notoriously bad at creating random sequences, and not all "random" functions in software are suitable for security purposes either. This tool uses your device's cryptographically secure randomness source specifically because it's appropriate for generating secrets.
Uniqueness: a strong password loses its value if it's reused. Every account should have its own, ideally stored in a password manager.
How to Protect Your Online Identity
A strong password is only one layer. For US accounts tied to sensitive financial, healthcare, or government portals, pair strong, unique passwords with Two-Factor Authentication (2FA) wherever it's offered. Requiring a second form of verification — an authenticator app code, a push notification, or a hardware key — means a leaked password alone usually isn't enough to get into your account.
Frequently Asked Questions
Yes. All generation happens entirely in your browser using your device's cryptographically secure random number generator — the same class of randomness used in security-sensitive applications, not a simple random-number function. We never transmit or store your generated passwords.
Guidance has shifted toward longer minimums. NIST's current password guidelines call for at least 15 characters for a password used as your only login factor, with 16 or more recommended for higher-value accounts like email, banking, or your password manager. Our default length of 16 characters already meets that bar.
It helps, but length matters more. Current NIST guidance has actually moved away from mandating specific character types (uppercase, numbers, symbols) and puts the emphasis on overall length instead — a long password using only lowercase letters can be harder to crack than a short, complex one. Mixing character types is still a reasonable way to add strength within a given length, which is why it's offered here.
Use a reputable password manager to store it. That way you only need to remember one master password, and you can safely use a unique, long, random password on every site.
No — password reuse is one of the biggest security risks online. If one site suffers a data breach, attackers try that same password against your email, banking, and other accounts. A password manager makes using a unique password everywhere painless.
It uses your browser's Web Crypto API (crypto.getRandomValues), a cryptographically secure random number source, rather than a general-purpose random function. It also uses a proper Fisher-Yates shuffle when arranging characters, avoiding the subtle bias that simpler shuffling methods can introduce.
Yes. A strong password reduces the risk of your account being guessed or brute-forced, but 2FA protects you even if a password is somehow exposed — for example through a data breach on a site you used it on. The two work together, not as substitutes for each other.