Secret & Password Generator
Generate secure passwords or cryptographic keys offline in your browser. Includes entropy calculation for strength measurement.
Secret Generator Settings
Policy Simulator
Strong · years
Similar characters are excluded, reducing typing mistakes during manual entry.
Generated Passwörter / Secrets
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Guide & best practices
Secret Generator for passwords, keys and passphrases
Generate cryptographically random secrets with controlled length and character selection – privacy-friendly and local.
Typical use cases
Useful for API keys, service accounts, database passwords, tokens and creating memorable passphrases.
How Balou generates secrets
Choose length, character sets and mode (password/API key/passphrase); Balou generates the secret locally with a secure random generator.
Secret best practices
Use sufficient length and entropy, use a unique secret per service and store secrets only in a password manager.
Frequently asked questions
How long should an API key be?
At least 32 random characters (≈ 128+ bits of entropy); longer is fine for automated keys.
Password or passphrase?
Passphrases of several random words are memorable, long random passwords are compact – both need enough entropy.
What does entropy mean?
A measure of randomness; more entropy (bits) means exponentially more effort to guess.
Are the secrets transmitted?
No, generation runs locally in the browser using the browser crypto API.