12 tools

Password & Passphrase Tools

Free browser-based password & passphrase tools with instant results and no account required.

Password Generator

Generate cryptographically random passwords locally with configurable length, character sets, ambiguous-character filtering, and custom extras.

Assess password length and obvious local patterns without uploading the password.

Generate a random multi-word passphrase locally from a bundled word list.

Generate random numeric PINs locally with optional adjacent-repeat avoidance.

Calculate theoretical password entropy, minimum length for a target bit level, and exact search-space combinations.

Generate multiple cryptographically random passwords locally in one batch.

Check a password locally against custom length and character requirements.

Review a password policy configuration against current NIST SP 800-63B guidance.

Calculate the minimum length needed to reach a target theoretical random-password entropy.

Calculate the exact search-space size for a uniform password alphabet and length.

Calculate the unique alphabet size produced by selected password character sets.

Analyze and deduplicate a pasted password list locally without uploading it.