Password strength, encryption, HMAC, OTP, and certificate utilities.
Security
Score password strength and entropy.
Security
Calculate password entropy bits.
Security
Generate HMAC signatures from text and key.
Security
Encrypt and decrypt text with AES in the browser.
Security
Decode PEM SSL certificates.
Security
Decode certificate signing requests.
Security
Generate one-time numeric passwords.
Security
Generate time-based one-time passwords.
Security
Generate cryptographically secure tokens.
Security
Verify text against a bcrypt hash.
Security
Generate Argon2 password hashes.
Security
Demonstrate salted and peppered hashing.
Common questions about Security on the Developer Tools Hub.