Hashes and passwords
Hashes, password generation and strength checks, all offline.
Password Generator
Generate strong random passwords in your browser. Adjustable length, character sets, no ambiguous characters, plus a passphrase mode. Nothing is transmitted.
Password Strength Test
Check password strength by real entropy, not a coloured bar. Estimates crack time, detects patterns and common words. Runs offline in your browser.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or a file, all at once. Free, instant and computed in your browser.
MD5 Generator
Generate an MD5 hash of any text or file instantly. Includes checksum comparison. Free online MD5 generator that never uploads your data.
SHA Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, using the browser Web Crypto API. Free, instant, nothing uploaded.
Bcrypt Generator
Generate bcrypt hashes with a configurable cost factor, and verify a password against an existing hash. Free, and computed in your browser.
Credit Card Validator
Check a card number against the Luhn checksum and identify the issuer. Runs entirely in your browser: the number is never sent or stored.