Password Generator

This tool solves the need for quick, auditable password creation without transmitting data to remote services. It targets security practitioners, IT admins, developers, and teams that require strong credentials for user accounts, vaults, or test environments. All generation occurs client-side, ensuring passwords never leave the device, and it supports both random passwords and passphrase-style sequences built from dictionary words. Users can tailor entropy by selecting length, active character sets, and optional exclusions to reduce ambiguity during manual entry. The result is privacy-preserving, reproducible, and suitable for audit trails in sensitive workflows.
The core logic combines a cryptographic RNG with configurable rules. Inputs include length (8–128), booleans for lowercase, uppercase, digits, symbols, an option to exclude ambiguous characters, and a mode selector for password versus passphrase generation. In random password mode, the generator samples from the chosen charset using a secure RNG to produce a single string of the requested length. In passphrase mode, it selects words from an internal wordlist and concatenates them, optionally with separators, yielding higher memorability with provable entropy estimates. Outputs include the password string, an entropy estimate in bits, and a strength score to aid evaluation.
Use cases span onboarding, account creation, code repositories, and temporary test credentials. The tool differentiates by operating entirely offline, providing privacy-preserving results and clear entropy reporting. Export options allow copying to clipboard or downloading a text file; users should handle exports securely in shared environments. Edge cases are handled: requiring at least one character set and a valid length, fallback behavior if the RNG is unavailable, and explicit invalid-input codes rather than silent failures. The approach emphasizes safety, locality, and predictable behavior across regions and locales.