Strong Password Generator

This tool generates strong passwords by combining selected character sets and length, ensuring high entropy while avoiding predictable patterns. It is designed for security administrators, system engineers, and developers who must provision credentials that meet corporate or regulatory requirements. Users specify length and which character categories to include; the tool then constructs a random string using a cryptographic RNG. It supports exclusions of ambiguous characters and optional seed-based reproducibility for test environments.
Core logic centers on building an allowed alphabet from enabled sets, then sampling characters uniformly from that set. Entropy is estimated as length times the logarithm base 2 of the alphabet size, providing an objective measure of unpredictability. The tool outputs the raw password, the entropy value in bits, and a strength label derived from policy and entropy. It also supports advanced options such as pronouncable or dictionary-based modes, excluded characters, and deterministic seeding.
Typical use cases include onboarding new user accounts, rotating credentials on a schedule, and enforcing password quality across an organization. Output can be copied or integrated into workflows without storing passwords server-side. The approach emphasizes compatibility and security by default, using ASCII by default and offering Unicode if needed with awareness of downstream systems.