Custom password generator

This tool generates customized passwords by combining user-selected character categories and a desired length. It supports uppercase, lowercase, numeric, and symbolic sets, with options to exclude ambiguous characters and repeat characters. The core logic uses a cryptographically secure random source and a shuffled selection process to ensure uniform entropy distribution. Outputs can be shown as a single password or as a list of multiple candidates for selection. It is suitable for individual users needing strong personal credentials or organizations enforcing policy-compliant password creation. The tool accommodates localization considerations by preserving ASCII character handling and allowing regional character set expansions if needed. Unique differentiators include explicit control over allowed character classes, optional exclusion rules, and offline generation to avoid external data exposure. Use cases include creating daily passwords, onboarding credentials for apps, or replacing weak passwords in bulk with policy-compliant options. In practice, a security team may define a policy: length 16–32, include at least one uppercase, one lowercase, one number, and one symbol; the tool then enforces it during generation. The result is suitable for manual distribution or automatic provision through secure channels, ensuring compatibility with password managers. Core features include: length configuration, character class toggles, exclusion lists, single or multi-password output, and a one-click copy action.
The tool emphasizes reliability, reproducibility, and security while remaining straightforward for users who need quick, compliant credentials.