🔐 Password & Security Tools

Sixteen tools for passwords, passphrases, PINs, keys and password policy — every one uses your browser's cryptographic random number generator and sends nothing anywhere.

🔐 Password Generator

Random passwords with full control over length and character sets.

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🛡️ Password Strength Checker

Entropy and rough crack-time estimate for any password you type.

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🔤 Passphrase Generator

Memorable diceware-style passphrases with a true entropy estimate.

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🔢 PIN Generator

Random numeric PINs, with common weak-PIN avoidance.

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🗝️ API Key & Secret Generator

Random hex, Base64URL or prefixed tokens for API keys and secrets.

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🎲 Random String Generator

Random strings from any character set you define.

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🗂️ Backup Codes Generator

Printable one-time 2FA backup/recovery codes.

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🔐 TOTP Secret Generator

Base32 2FA secret key plus the matching otpauth:// setup URI.

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📊 Password Entropy Calculator

Entropy in bits and crack-time estimates across guess-rate scenarios.

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📋 Password Policy Generator

Build a written password policy from your chosen requirements.

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🚫 Common Password Checker

Check a password against a list of common/breached passwords.

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🕵️ Anonymous Username Generator

Random adjective+noun usernames that reveal nothing about you.

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❓ Security Question Answer Generator

Random unguessable answers for security questions.

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🔄 Password Rotation Calculator

Find your next password-change date from a rotation policy.

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📶 WiFi Password Generator

Strong WPA2/3-safe passphrases without confusing characters.

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🗂️ 2FA Backup Code Validator

Check pasted 2FA backup codes for format issues and duplicates.

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