Generate and verify bcrypt password hashes. Everything runs in your browser — nothing is sent to a server.
Bcrypt is a password-hashing function designed by Niels Provos and David Mazières in 1999. It's based on the Blowfish cipher and includes a built-in salt to protect against rainbow table attacks.
10 — default, good for most applications (~100ms)12 — recommended for production systems (~300ms)14+ — high security, but slower (~1-2 seconds)Each additional round doubles the computation time. Choose based on your performance budget.
Yes. This tool runs entirely in your browser using the bcryptjs library. Your password never leaves your device — no network requests are made during hashing or verification. Check the network tab in DevTools to confirm.
Node.js: npm install bcryptjs
Python: pip install bcrypt
Go: golang.org/x/crypto/bcrypt