Password Generator

This tool generates high-entropy passwords by combining length, character sets, and a cryptographically secure source of randomness. Users specify which classes to include (lowercase, uppercase, digits, symbols) and a target length; the generator then produces a single password that satisfies the configuration. It is suitable for individuals creating new accounts and for teams rotating credentials.

Conceptually, entropy is approximated as length times log2(n), where n is the number of available characters. The tool uses a crypto-secure RNG (e.g., Web Crypto) to sample uniformly from the chosen set, ensuring unpredictability. Optional options may exclude ambiguous characters to improve usability, or enable a passphrase-style mode with word lists.

Benefits include reduced password reuse, alignment with security policies, and streamlined credential provisioning. It supports quick copy to clipboard and optional export formats for password managers. It can be configured for one-off accounts or recurring rotation workflows.

Core features include required inputs like length and character sets, plus advanced options such as deterministic seeds, repeat prevention, and entropy reporting. This combination enables both random password generation and reproducible testing scenarios.