Password Strength Analyzer

Entropy, crack time estimate, pattern detection

About Password Strength Analyzer

The Password Strength Analyzer tool allows developers, security auditors, and engineers to perform entropy, crack time estimate, pattern detection in a secure, instant, and private manner.

🔒 100% Client-Side Privacy

All computations, key generations, hashing, and conversions are calculated locally inside your web browser. No plain text, secret keys, or uploaded files ever leave your device or reach an external server.

⚡ Offline & PWA Ready

DevCipher is fully usable offline and in air-gapped security environments. Install it as a Desktop Progressive Web App (PWA) via your browser's install menu.

More Developer Tools Tools

View all

JWT Decoder / VerifierDecode, encode and verify JSON Web Tokens UUID GeneratorGenerate UUID v1, v3, v4, v5 — bulk generation Password HasherHash passwords with bcrypt, scrypt, PBKDF2 Hash IdentifierIdentify hash algorithm from any hash string Certificate InspectorParse X.509 PEM certificates — subject, SANs, expiry cURL to Code ConverterConvert cURL commands to Fetch, Python, Go, Node