Password Generator
Generate 4–128-character passwords with selected character groups, strength estimates and recent results.
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Estimated crack time —
This is a rough estimate assuming one billion guesses per second, not a security guarantee.
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About the Password Generator
Our password generator creates strong, unpredictable passwords in one click. With data breaches exposing billions of credentials every year, using unique, complex passwords for each account is no longer optional. This tool makes it quick to generate strong passwords that meet the highest security standards.
The generator supports passwords from 4 to 128 characters using customizable character sets including uppercase letters, lowercase letters, numbers, and special symbols. Every password is guaranteed to include at least one character from each selected category, ensuring consistent strength. An option to exclude visually similar characters (like i, l, 1, O, 0) prevents confusion when passwords need to be read or typed manually.
Each generated password is analyzed in real time with a password strength meter that evaluates length, character diversity, and complexity. The tool also estimates how long it would take an attacker to crack the password using brute-force methods at a rate of one billion guesses per second, giving you a concrete sense of your password's resilience.
Key Features
- Adjustable password length from 4 to 128 characters via slider
- Customizable character sets: uppercase (A-Z), lowercase (a-z), numbers (0-9), and symbols
- Real-time password strength analysis with visual strength bar
- Estimated brute-force crack time calculation
- Option to exclude visually similar characters (i, l, 1, L, o, 0, O)
- Password history panel showing your last 5 generated passwords
- Show/hide password toggle for screen privacy
- One-click copy to clipboard for instant use
- Guaranteed character category inclusion for consistent strength
- Passwords are never sent, stored, or logged
How to Use the Password Generator
- Set the length: Use the slider to choose a password length between 4 and 128 characters. For strong security, a minimum of 16 characters is recommended.
- Select character types: Check or uncheck the character set options: Uppercase, Lowercase, Numbers, and Symbols. Enable all four for maximum strength.
- Configure options: Optionally enable "Exclude Similar Characters" if you need to type the password manually and want to avoid confusing characters.
- Generate the password: Click "Generate New Password" to create a fresh random password. A new password is also generated automatically when you change any settings.
- Review strength: Check the strength meter and estimated crack time below the password field to ensure it meets your security needs.
- Copy and use: Click the copy button next to the password field to copy it to your clipboard. Store it securely in your password manager.
Use Cases
- Account Registration: Generate a unique, strong password every time you create a new online account to prevent credential reuse.
- Password Manager Setup: Populate your password manager with randomly generated passwords for all your existing accounts during initial setup.
- Wi-Fi Network Security: Create long, complex WPA2/WPA3 passwords for your home or office wireless networks.
- Application Secrets: Generate secure API keys, database passwords, and encryption keys for software development projects.
- Team Credentials: Create temporary shared passwords for team accounts, then rotate them regularly for security.
- Two-Factor Backup Codes: Generate secure backup phrases for services that support custom recovery codes.
- Server Administration: Create strong root and service account passwords for servers, databases, and cloud infrastructure.
- Encryption Passphrases: Generate long, complex passphrases for file encryption, disk encryption, and secure communications.
Frequently Asked Questions
Is this tool free?
Yes. There is no cap on how many passwords you can generate, and every option on the page is available to everyone.
Is my data secure?
Yes. Generated passwords are never sent to a server, stored in a database, or logged anywhere. They exist only on your screen until you copy them.
How long should my password be?
Security experts recommend passwords of at least 12-16 characters. For high-security accounts like banking, email, and cloud services, 20 or more characters with all character types enabled is ideal.
Are the passwords truly random?
Yes. Every character is drawn from a cryptographically secure random source, with each allowed character equally likely, so the result is suitable for real account passwords. The guaranteed category inclusion ensures every password contains the character types you selected.
Should I use a password manager?
Absolutely. A password manager lets you store and auto-fill unique, complex passwords for every account. Generate passwords with this tool, then save them in your password manager for convenient, secure access.
Tips & Best Practices
- Use at least 16 characters: Longer passwords are exponentially harder to crack. Every additional character multiplies the number of possible combinations.
- Enable all character types: Using uppercase, lowercase, numbers, and symbols together maximizes the character space and password strength.
- Never reuse passwords: Generate a unique password for every account. If one service is breached, your other accounts remain protected.
- Store passwords securely: Always save generated passwords in a reputable password manager rather than writing them down or storing them in plain text files.
- Rotate sensitive passwords: Change passwords for critical accounts like email, banking, and cloud services every 3-6 months.
- Enable two-factor authentication: Even the strongest password benefits from an additional layer of security like TOTP authenticator apps or hardware security keys.