Built and fact-checked by the DocNectar team — see our editorial standards
Key Features
Instant Calculation
Get accurate results in real time with our optimized algorithm.
Mobile Friendly
Fully responsive design. Works on all devices & screen sizes.
Privacy Focused
Your data stays on your device. We don't store any inputs.
100% Free
No hidden costs. This tool is completely free forever.
Weak or reused passwords are one of the most common causes of account compromise. This generator creates strong, random passwords using PHP's cryptographically secure random number generator, not a predictable pseudo-random source, so every character is genuinely unpredictable.
Choose your desired length and which character types to include, and generate a new password instantly — nothing is stored or transmitted beyond the single request.
How it works
Choose a password length and toggle which character types to include (lowercase, uppercase, numbers, symbols). The tool builds a character set from your choices and picks each character using a cryptographically secure random number generator.
- Choose the password length.
- Toggle which character types to include.
- Generate and copy the password.
Examples
A strong 16-character password
A 16-character password using all four character types provides very strong resistance to brute-force guessing.
Who should use it
- Creating a new strong password when signing up for an account.
- Replacing a weak or reused password on an existing account.
Industry applications
- Software development and DevOps
- General account security
Advantages
- Uses a cryptographically secure random number generator, not predictable pseudo-randomness.
- Full control over length and character type mix.
Limitations
- Some legacy sites restrict allowed symbols or maximum length, requiring you to adjust settings.
- A strong generated password is still only as safe as where you store it afterward.
Common mistakes to avoid
- Reusing the same generated password across multiple accounts.
- Choosing a very short length to make it "easier to remember" instead of using a password manager.
Best practices
- Store generated passwords in a reputable password manager rather than memorizing or reusing them.
- Use the maximum length and all character types your target site allows.
Tips
- Enable symbols whenever a site allows them — they meaningfully increase the character set size and therefore the password's resistance to brute-force attacks.