Passwords & Key Derivation
Bcrypt, PBKDF2, HMAC, Scrypt, password entropy analyzers and secure passphrase generators. All tools run strictly inside your browser thread via the W3C Web Cryptography API with zero remote telemetry.
Bcrypt Hash Generator
Generate secure Blowfish-based Bcrypt password hashes ($2a$, $2b$, $2y$) with configurable salt work factor rounds (4 to 14) in your browser.
Bcrypt Hash Verifier
Verify if a plaintext password matches an existing Bcrypt hash string ($2a$, $2b$, $2y$). 100% client-side verification.
PBKDF2 Key Derivation Generator
Derive cryptographic keys using Password-Based Key Derivation Function 2 (PBKDF2) with SHA-256, configurable iterations and salt in your browser.
HMAC-SHA256 Generator
Generate Hash-based Message Authentication Codes (HMAC-SHA256) with a secret key. Standard for AWS, Stripe, GitHub and Twilio webhook signatures.
HMAC-SHA512 Generator
Compute 512-bit HMAC-SHA512 message authentication codes using shared secret keys in your browser.
HMAC-MD5 Generator
Calculate HMAC-MD5 keyed-hash message authentication codes for legacy API compatibility and network protocol verification.
HMAC-SHA1 Generator
Compute HMAC-SHA1 signatures. Standard signature method for OAuth 1.0a, TOTP (Google Authenticator) and legacy systems.
Password Entropy & Strength Analyzer
Calculate mathematical Shannon entropy in bits, crack-time estimations, character space analysis, and NIST SP 800-63B compliance locally in your browser.
Diceware Passphrase Generator
Generate memorable, high-entropy multi-word passphrases using the official EFF wordlist and cryptographically secure random integers (crypto.getRandomValues).
Cryptographically Secure Password Generator
Generate high-entropy random passwords using window.crypto.getRandomValues. Configure length, symbols, numbers, and avoid ambiguous characters.
Scrypt Hash Generator
Compute memory-hard Scrypt key derivations and password hashes. Designed to resist hardware ASIC and GPU brute-force cracking.
Argon2 Hash Generator
Calculate Argon2id, Argon2i, and Argon2d hashes. Winner of the Password Hashing Competition (PHC) and modern gold-standard for password storage.
About Passwords & Key Derivation Architecture
Cryptographic operations in the Passwords & Key Derivation suite are engineered to run client-side to prevent credential leakage. Whether processing private keys, password hashes, or security tokens, our platform guarantees that no sensitive bytes leave your workstation.