🔒Security & Cryptography
Generate and check passwords, hashes, encryption and keys right in your browser – everything runs locally, free and without sign-up.
15 free tools – right in your browser, no sign-up.
Password Generator
Generate secure passwords with configurable character set
Hash Generator
MD5, SHA-1/256/384/512 from text or file – runs in the browser
AES-256 Encryption
Encrypt and decrypt text with AES-256-GCM + PBKDF2 in the browser
Password Strength Checker
Analyze the strength and security of a password
RSA Key Generator
Generate RSA-2048/4096 key pairs in the browser
TOTP Generator
Generate time-based one-time passwords (RFC 6238) in the browser
HMAC Signer
Compute HMAC-SHA-1/256/512 with WebCrypto
CRC Calculator
CRC-8, CRC-16, CRC-32 from text or hex bytes
Bcrypt Generator
Hash and verify passwords with bcrypt
JWT Generator
Create and sign JSON Web Tokens with HS256/RS256
Encrypted File Transfer
Share files E2E-encrypted (ECDH + AES-GCM) via WebRTC P2P – no server upload
Share Clipboard
Securely transfer text between devices (PC ↔ smartphone) – end-to-end encrypted via WebRTC, no sign-up
SSH Key Generator
Generate Ed25519 and RSA SSH key pairs in the browser
htpasswd Generator
Generate .htpasswd entries for Apache & Nginx
Password Entropy Calculator
Calculate entropy and crack time of a password