Hashes and passwords
8 toolsHashes, password generation and strength checks, all offline.
Password Generator
Generate strong random passwords in your browser.
Password Strength Test
Check password strength by real entropy, not a coloured bar.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file, all at once.
MD5 Generator
Generate an MD5 hash of any text or file instantly.
SHA Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, using the browser...
Bcrypt Generator
Generate bcrypt hashes with a configurable cost factor, and verify a password against an...
Credit Card Validator
Check a card number against the Luhn checksum and identify the issuer.
JWT Decoder
Decode a JSON Web Token, read its claims with dates in plain English, and verify an HS256...
Hashes and passwords are the two things you should be most reluctant to paste into a random website. Here both stay in your browser: generate MD5, SHA or bcrypt hashes, build passwords with real entropy, check how strong an existing one is, decode a JWT. Nothing is transmitted, which for this category is not a convenience but the entire point.