privacy

Password Generator

Generate secure, deterministic passwords with customizable length and character options

password

security

generator

Deterministic Password Generator

Generate unique passwords based on a Master Phrase and a service. Everything calculated locally, no data sent to server.

Master Phrase (secret)

Service Name

Password Length

Options

Include numbers

Include symbols

Security Level

Good

About Password Generator

This tool uses deterministic password generation based on a Master Phrase and service name. You only need to remember one phrase instead of many passwords. Generated passwords use cryptographic hash functions with high entropy. Use it for account security, API key generation, and creating unique passwords for each service.

This tool uses a deterministic algorithm to derive a unique password from your master phrase and service name. The same inputs always produce the same password, so you only need to remember one master phrase.

Generate unique passwords for each account, create API keys, generate temporary passwords, and bulk-generate passwords for team onboarding.

• Account Security: Generate unique passwords for each online account without remembering them all
• API Key Generation: Create secure API keys and tokens for development
• Temporary Passwords: Generate one-time passwords for shared access or temporary accounts
• Bulk Generation: Create multiple passwords for team onboarding or system setup

Answers about password strength, character length recommendations, memorable vs random passwords, and master phrase recovery.

How secure are generated passwords?

Generated passwords use cryptographic hash functions with high entropy. A 16-character password with symbols has approximately 95^16 possible combinations, making it virtually impossible to brute force.

What character length is best?

12 characters is the minimum recommended for most accounts. 16-20 characters provides better security for high-value accounts like banking or email. 32 characters offers maximum security.

Memorable vs random passwords?

Random passwords are more secure but harder to remember. This tool uses deterministic generation - you only need to remember one Master Phrase instead of many passwords.

Can I recover my Master Phrase?

No, the Master Phrase is never stored. If you forget it, you cannot recover your generated passwords. Write it down securely or use a password manager as backup.

Recommendations for master phrase strength, character variety, avoiding patterns, and regular password updates.

• Use a long, unique Master Phrase (20+ characters) that you won't forget but others won't guess
• Always include uppercase, lowercase, numbers, and symbols for maximum security
• Avoid common patterns, dictionary words, or personal information in your Master Phrase
• Consider updating passwords periodically, especially for sensitive accounts

Password character sets and strength guidelines.

Password Entropy: log2(charset_size^length) - 16 chars with symbols = ~105 bits of entropy

Hash Function: SHA-256 for cryptographic security and deterministic output

Storage: Never store passwords - regenerate them from Master Phrase when needed

Generation algorithm, character options, and entropy details.

• Algorithm: SHA-256 cryptographic hash function
• Character Set: 94 printable ASCII characters (26 uppercase + 26 lowercase + 10 digits + 32 symbols)
• Entropy: Up to 105 bits for 32-character passwords with full character set
• Deterministic: Same input always produces same output