Generate strong, unpredictable passwords, passphrases, or PINs entirely in your browser. Nothing is ever sent to a server.
Bulk Password Generation
Click "Generate All" to create multiple passwords at once...
What Is a Password Generator?
A password generator creates random, strong passwords using a mix of characters you choose, removing the human bias that makes self-created passwords predictable and easy to guess.
This tool generates passwords entirely in your browser using window.crypto.getRandomValues, JavaScript's cryptographically secure random number source, never a weaker pseudo-random function. Nothing is transmitted to any server.
What Makes a Strong Password in 2026?
A strong password is at least 16 characters, mixes uppercase, lowercase, numbers, and symbols, and is unique to one account. NIST's 2024 guidelines confirmed length matters more than complexity: a 16-character mixed password is dramatically stronger than an 8-character password loaded with symbols.
| Length | Character Types | Recommendation |
|---|---|---|
| 8 characters | Numbers only | Never use |
| 8 characters | Mixed | Avoid |
| 12 characters | Mixed | Minimum |
| 16 characters | Mixed | Recommended |
| 20+ characters | Mixed | Ideal for sensitive accounts |
How Passwords Actually Get Cracked
Understanding the attack methods explains why length and randomness matter more than clever substitutions like swapping "a" for "@".
| Attack Method | How It Works | What Defeats It |
|---|---|---|
| Brute force | Tries every possible character combination systematically | Length. Every extra character multiplies the search space. |
| Dictionary attack | Tries real words, names, and known passwords first | Randomness. No dictionary word or common phrase pattern. |
| Rainbow table | Uses precomputed hash lookups to reverse common passwords instantly | Uniqueness and length beyond common precomputed sets. |
| Credential stuffing | Reuses passwords leaked in one breach against other sites automatically | Using a different password for every account. |
| Social engineering / phishing | Tricks the user into revealing the password directly | No generator defends against this; use 2FA and verify senders. |
Most real-world account takeovers in 2026 come from credential stuffing and phishing, not from attackers brute-forcing a strong password directly. That is precisely why password uniqueness and two-factor authentication matter as much as password strength itself.
Common Weak Password Patterns to Avoid
Security researchers who analyse leaked password databases consistently find the same predictable patterns. Avoid these even when a password otherwise looks complex:
- Keyboard walks like "qwerty123" or "1qaz2wsx", predictable to anyone who has seen a keyboard layout.
- Leetspeak substitutions like "P@ssw0rd!", cracking tools check these substitutions automatically as part of standard dictionary attacks.
- Personal information including birth years, pet names, or a company name plus the current year.
- Sequential patterns like "abc123" or repeating a short base password with an incrementing number for each new account.
- Single dictionary words even long ones, since dictionary attacks check every word in major language dictionaries in seconds.
NIST 2024 Guidelines vs Older Corporate Policies
Many organisations still enforce password policies written before NIST's 2024 update, and the gap matters for anyone setting internal standards.
| Policy Area | Older Common Standard | NIST 2024 Guidance |
|---|---|---|
| Minimum length | 8 characters | 15 or more characters recommended |
| Complexity rules | Mandatory mix of character types | Length prioritised over forced complexity |
| Expiration | Forced change every 60 to 90 days | No mandatory periodic rotation; change only when compromised |
| Password hints | Often allowed | Should not be permitted |
| Screening | Rarely checked against known breach lists | Recommended to check new passwords against known breached password lists |
If your workplace still enforces forced 90-day rotation, that policy predates the current guidance and, according to NIST's own reasoning, tends to produce weaker passwords over time as people fall back on predictable incrementing patterns to remember what changed.
Browser Password Managers vs Dedicated Password Managers
Chrome, Safari, and Firefox all include a built-in password manager, and the honest comparison depends on what you need.
| Factor | Browser Built-In | Dedicated Manager (Bitwarden, 1Password, Proton Pass) |
|---|---|---|
| Cost | Free | Free tier available; paid tiers for advanced features |
| Cross-browser support | Limited to that browser's ecosystem | Works across every browser and OS |
| Secure sharing | Minimal or none | Built-in secure sharing for families and teams |
| Breach monitoring | Basic in some browsers | Often included, sometimes as a paid feature |
| Open-source / audited | Closed source | Bitwarden is fully open-source and independently audited |
For most people, a dedicated manager is worth the switch specifically because it is not tied to one browser and offers real breach monitoring. Bitwarden's free tier remains one of the most generous in the category as of 2026.
Random passwords are the strongest option, best stored in a password manager. Memorable passphrases combine several words into something you can type manually, useful for a password manager's master password. PIN codes suit devices and cards that only accept numbers.
Why you should never reuse passwords: when one service is breached, attackers try those same credentials on hundreds of other sites, a technique called credential stuffing. A unique password per account contains the damage to a single breach.
After Generating a Password
- Save it in a password manager immediately, such as Bitwarden or Proton Pass.
- Enable two-factor authentication wherever available.
- Never paste it into notes apps or messages.
- Use a different password for every account.