Bulk Password Generator

This security tool creates large quantities of random passwords simultaneously using cryptographically secure pseudo-random number generators (CSPRNG) to ensure password unpredictability. The batch generator produces hundreds or thousands of unique passwords in a single operation, each meeting specified complexity requirements including configurable length (typically 8-64 characters), character set inclusion rules for uppercase, lowercase, digits, and special symbols, and optional exclusion of ambiguous characters like O/0 or l/1 to prevent transcription errors.

Generation algorithms leverage browser's crypto.getRandomValues() API accessing operating system entropy sources for true randomness rather than predictable pseudo-random patterns. Character selection applies uniform distribution across the allowed character space, preventing statistical biases that weaken password strength. Uniqueness validation prevents duplicate generation across large batches through hash set tracking, while optional pronounceability modes use syllable patterns or word lists for memorable passwords balancing security with human usability.

Output formats include plain text lists for clipboard export, CSV files with password indexing for database imports, or grouped batches where each password associates with a username or identifier from paired input lists. Visual strength indicators score each password using entropy calculations and common pattern detection, flagging weak generations that accidentally form dictionary words or predictable sequences. Applications span IT administrators provisioning credentials for bulk user account creation, security teams generating API keys or temporary access codes, testing environments requiring realistic authentication data, or personal use creating unique passwords for multiple new service registrations. All generation occurs offline through client-side scripting without password transmission ensuring created credentials remain completely private.