Strong Password Generator

Generates strong, unique passwords by applying user-defined constraints on length and character composition. Primary users include developers, IT security teams, and administrators who provision accounts or rotate credentials. The tool supports policy-aligned configurations, enabling teams to meet risk reduction targets by avoiding common weak patterns and ensuring diversity across uppercase, lowercase, digits, and symbols.
Conceptually, generation relies on a cryptographically secure RNG to sample from an allowed character pool. The pool size is the sum of enabled sets minus any excluded characters. The resulting password length and pool size yield an approximate entropy of length × log2(pool_size). If constraints require at least one character from each chosen set, entropy remains high, though the exact value depends on constraints.
Use cases include onboarding new users, enforcing strong-password policies in automated workflows, and supplying credentials for staging or automation. Unique differentiators include explicit exclusion of ambiguous characters, batch generation, and an explicit entropy/strength estimate. The tool emphasizes security realism over marketing promises and does not store or transmit generated passwords by itself.
Core features are: length control, optional sets, exclusions, batch capability, and basic strength feedback. Optional features include seed-based reproducibility and rule-driven validation. Outputs are suitable for integration with vaults and provisioning pipelines, provided best practices are followed. Assumptions include access to a cryptographic RNG; exclusions avoid characters that confuse users across keyboard layouts; no storage is performed.