Password strength meters are inconsistent — 'Password1!' passes most checks but is terrible. Built-in browser password checks are basic. No API checks passwords against breach databases AND provides strength scoring. Password policy enforcement requires custom code. Users create weak passwords because feedback is poor.
Password strength API that scores passwords on entropy, checks against breach databases (Have I Been Pwned), identifies common patterns, and suggests specific improvements — without ever storing the password.
Developers building signup forms with password validation, security teams enforcing password policies, and SaaS platforms wanting better password UX
Data breaches make password security critical. NIST guidelines changed password recommendations. Credential stuffing attacks are increasing. Better UX reduces support tickets. Zero-knowledge APIs build trust.
Free: 1K checks/day. Pro: $5/mo (10K/day + widget). Business: $15/mo (100K/day + custom policies). Annual: 20% discount.
Open-source library. Good scoring, no breach checking, no API
Breach checking only. No strength scoring, no suggestions
Basic, inconsistent across browsers, no breach data
Weak security, no entropy scoring, false sense of security
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