Passwords & Security
20 tools
Generate strong passwords, passphrases and PINs using your browser's cryptographically secure random number generator. Nothing you generate here is ever sent to a server, logged, or stored.
Showing 20 of 20 tools.
- Secure Password GeneratorGenerate a strong, random password locally in your browser — never transmitted or stored.
- Passphrase GeneratorGenerate a memorable, high-entropy passphrase from random words, built locally in your browser.
- PIN GeneratorA numeric PIN between 4 and 12 digits — for testing PIN-entry flows or examples, not a real account credential.
- UUID GeneratorAn RFC 4122 v4 UUID for development or testing use — cryptographically random, not sequential.
- Pronounceable Password GeneratorGenerate a strong password built from consonant-vowel syllables, easier to read and type.
- WiFi Password GeneratorGenerate a strong random password suited to setting up a home WiFi network.
- Memorable Password GeneratorGenerate a Word+Number+Symbol style password that's easier to remember or read aloud.
- Recovery Code GeneratorGenerate a grouped, ambiguity-free recovery code for account backup use.
- Bulk Password GeneratorGenerate many independent passwords at once, for provisioning multiple accounts.
- API Key GeneratorA sample API key for testing config, mocks or documentation examples.
- Lockout Policy CalculatorWhat an account lockout actually buys: how many guesses an attacker gets per hour, and how long the secret would hold out.
- Password Entropy CalculatorHow many bits a password actually carries, what that costs an attacker at four realistic speeds, and how many random words match it.
- Key Stretching CalculatorTurns an iteration count into the time a login costs you and the guessing rate it leaves an attacker, and inverts it to hit a target.
- Authenticator Code Window CalculatorHow many authenticator codes are valid at once, and exactly what widening the window to forgive clock drift costs.
- Security Question GeneratorAn example security-question prompt idea — not a real answer or account data.
- Test Account GeneratorGenerate a fake username, @example.com email and password for testing signup forms.
- Webhook Secret Example GeneratorGenerate a clearly-fake webhook-signing-secret sample for filling in test configs.
- JWT Sample GeneratorGenerate a clearly-fake JWT-shaped sample string — not a valid or usable authentication token.
- Nonce GeneratorGenerate a cryptographically random nonce (hex-encoded), for one-time-use security contexts.
- Salt GeneratorGenerate a cryptographically random salt (hex-encoded), for password-hashing contexts.
Choosing the right passwords tool
Credential and token tools, all generated in your browser with cryptographic randomness and never transmitted, stored or logged. None of them offers a seeded or reproducible mode, deliberately: reproducibility is the opposite of what a secret needs. These pages are excluded from advertising, so nothing renders alongside a generated credential.
- Secure Password Generator
- The password is going straight into a password manager and never has to be typed from memory.
- Passphrase Generator
- A person has to remember and retype it — a device login, or a password manager's own master password.
- PIN Generator
- You need a short numeric code, with the understanding that short numeric codes are weak by nature.
- API key and token generators
- You need a machine credential of a particular shape or length rather than something a human will read.
Every tool in this category draws its results in your browser. How Generate Random works explains how the randomness is produced and what happens to anything you type in.