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Trình kiểm tra độ mạnh mật khẩu

Password strength checker: evaluate length and complexity with crack time and tips locally offline for safety, with one-click copy and multilingual.

Cách sử dụng

Nhập mật khẩu, cấp độ mạnh, giá trị entropy và thời gian phá ước tính sẽ hiển thị theo thời gian thực, đồng thời đưa ra gợi ý cải thiện.

Overview

Password Strength Checker is a Generator tool. Evaluate length and complexity with crack time and tips locally offline for safety, with one-click copy and multilingual. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Password Strength Checker: Type a password to see its strength, entropy and estimated crack time, plus tips to improve it. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Password Strength Checker offline or on poor network — all calculations stay local and private.
  • Create UUIDs and short strings
  • Mock data for testing

How to use

  1. 1 Type a password to see its strength, entropy and estimated crack time, plus tips to improve it..
  2. 2 Set length/charset rules
  3. 3 Preview and lock/exclude items
  4. 4 Copy or export CSV/TXT

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Uses Crypto API
  • Batch export in chunks for thousands
  • Mock data for testing only

FAQ

Reproducible?
Fix seed or export log if needed.
How random?
crypto.getRandomValues with system entropy.
How is Password Strength Checker different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “password strength, entropy” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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All calculations run locally in your browser; nothing is uploaded.