Password & Security Tools
6 free online security tools — test passwords, mint UUIDs, validate cards, encrypt text and inspect tokens, all in your browser.
Password Strength Checker
Rate your password and see its real weakness
Open tool →UUID Generator
Generate RFC-4122 v4 UUIDs with the Web Crypto API
Open tool →Credit Card Validator
Verify a card number with the Luhn algorithm
Open tool →Passphrase Generator
Build memorable, strong passphrases
Open tool →Text Encryptor
AES-encrypt text with a password — stays on your device
Open tool →JWT Decoder
Decode a JWT and inspect its header and claims
Open tool →