Password Strength Estimator

Password Strength Estimator – Crack Time & Entropy Tool

🔐 Password Strength Estimator

Strong passwords are the foundation of digital security. Weak, reused, or guessable passwords account for a significant portion of breaches worldwide. This tool offers a quick, interactive way for users to evaluate how strong their chosen password is. Whether you’re creating a new login or auditing existing credentials, knowing the character variety and resistance to brute-force attacks is essential for personal and enterprise safety.

Our estimator uses length, uppercase/lowercase balance, digits, and symbols to calculate entropy. Then, based on that entropy, it estimates how long it would take for a brute-force attack to crack the password. Everything runs client-side, so no sensitive data is ever transmitted. Ideal for security courses, signup forms, UX enhancements, or general user education.

Related: Password ToolHash GeneratorJSON FormatterCRON VisualizerSprint Analyzer


  • GAQM APM-001 Associate in Project Management (APM) Exam

    GAQM APM-001 Associate in Project Management (APM) Exam

  • GAQM – Associate In Project Management (APM)

    GAQM – Associate In Project Management (APM)

  • Associate in Project Management (APM – GAQM) practice exams

    Associate in Project Management (APM – GAQM) practice exams

  • ISACA® Risk and Information Systems Control | Practice Tests

    ISACA® Risk and Information Systems Control | Practice Tests

  • CompTIA Security+ SY0-501 practice questions

    CompTIA Security+ SY0-501 practice questions

  • IT Certification – Study guide to passing at first attempt!

    IT Certification – Study guide to passing at first attempt!

  • Complete ISO 27001 Implementation Course

    Complete ISO 27001 Implementation Course

  • The Comprehensive Guide to A + Certification Using the CompTIA Curriculum

    The Comprehensive Guide to A + Certification Using the CompTIA Curriculum

  • CompTIA N10-004 Network+ Certification Practice Exam

    CompTIA N10-004 Network+ Certification Practice Exam

  • CompTIA LX0-104 Linux Powered by LPI Certified Practice Exam

    CompTIA LX0-104 Linux Powered by LPI Certified Practice Exam

  • SY0-401 & SY0-501 CompTIA Security+ Practice Test 2020

    SY0-401 & SY0-501 CompTIA Security+ Practice Test 2020