Password Generator

Create strong, random passwords and memorable passphrases.

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Features

Dual Generation Modes

Generate high-entropy random passwords with customizable character sets, or create memorable passphrases using common words for easy recall.

Client-Side Security

All passwords are generated locally using the cryptographically secure Web Crypto API. Your data never leaves your browser.

Real-Time Strength Meter

See instant entropy calculations and estimated crack times. Know exactly how strong your password is.

Memorable Passphrases

Create strong but easy-to-type passwords like 'coffee-table-vision-purple' using 500+ common words from the EFF wordlist.

Advanced Customization

Adjust length, character sets, word count, separators, capitalization, and even add random numbers to your passphrases.

Bulk Generation

Generate multiple passwords at once for batch operations, with one-click copy and download as text file.

Password History

Keep track of your recently generated passwords in a secure, session-based history for easy recovery.

About Password Generator

Our advanced Password Generator offers two powerful modes to secure your digital life, backed by real-time strength analysis: Random Password Mode: Generate high-entropy passwords with customizable length (6-64 characters) and character sets including uppercase, lowercase, numbers, and symbols. Optional exclusion of ambiguous characters (Il1O0o) improves readability. Perfect for use with password managers. Memorable Passphrase Mode: Create long, easy-to-type, and easy-to-remember passwords made of random words from a 500+ word dictionary (e.g., "coffee-table-vision-purple"). Choose word count (3-10), separators (-, _, ., space), capitalization, and optional numbers. Based on the XKCD/Diceware methodology. Security You Can See: Our real-time strength meter displays: - Entropy in bits (higher = better) - Estimated crack time against a 10 billion guesses/second attacker - Visual strength indicator from "Very Weak" to "Very Strong" Complete Privacy: This tool runs 100% in your browser using the Web Crypto API for cryptographically secure random number generation. No data is ever sent to a server or stored externally. Your passwords remain completely private. Advanced Features: - Bulk generation for multiple passwords at once - Session-based history (last 10 passwords) - Keyboard shortcuts (Space to regenerate, Ctrl+C to copy) - Show/hide toggle for sensitive displays

How to Use Password Generator

  • 1
    Select Generation Mode

    Choose 'Random Password' for maximum entropy, or 'Memorable Passphrase' for passwords you can actually remember and type easily.

  • 2
    Configure Settings

    For random mode: adjust length and select character types. For passphrase mode: choose word count, separator, and options like capitalization.

  • 3
    Check Strength

    Review the strength meter to ensure your password meets your security requirements. Aim for at least 60 bits of entropy for sensitive accounts.

  • 4
    Generate & Copy

    Press Space or click Regenerate for a new password. Click Copy to save to clipboard. Use bulk mode for generating multiple passwords.

  • 5
    Use History

    Access recent passwords from the history section if you need to retrieve a previously generated password.

Frequently Asked Questions

Random passwords use cryptographically random characters (letters, numbers, symbols) and offer maximum entropy per character. They're best for password managers where you don't need to remember them. Memorable passphrases combine random common words (like 'coffee-table-vision-purple') which are easier to type and remember while still offering excellent security through sheer length. A 4-word passphrase can be as strong as a 12-character random password.
Strength is measured in 'bits of entropy' - a mathematical measure of randomness. For random passwords, we calculate: length × log2(charset size). For passphrases: word count × log2(word list size) plus bonuses for numbers and capitalization. The crack time estimate assumes an attacker with 10 billion guesses per second. Higher entropy = exponentially harder to crack.
Yes! Security and privacy are our top priorities. All passwords are generated client-side using the Web Crypto API, which provides cryptographically secure random numbers. Your passwords are never sent to any server, never logged, and never stored externally. The history is session-based and disappears when you close the tab. This is more secure than many online generators that process passwords on their servers.
Three factors determine strength: (1) Length - longer is exponentially better, (2) Complexity - varied characters increase entropy, (3) Randomness - unpredictability prevents pattern attacks. A 16-character random password or 5-word passphrase provides excellent security for most purposes. For banking and critical accounts, use at least 20 characters or 6+ words.
Absolutely. The passwords generated use cryptographically secure random number generation via the Web Crypto API, the same standard used by modern browsers and security tools. For maximum security on sensitive accounts, we recommend: random passwords of 20+ characters, or passphrases of 6+ words. Always enable two-factor authentication (2FA) when available.
Hyphens (-) are the most common and compatible choice. Underscores (_) work well in environments where hyphens might be problematic. Periods (.) are good for creating domain-like passphrases. Spaces work great for typing but may not be accepted by all systems. Choose based on where you'll use the password - some sites don't allow spaces or certain special characters.