bcrypt Hash Generator/Verifier
Generate a bcrypt hash, or check a password against an existing one — all in your browser, nothing sent anywhere.
About this tool
Uses bcryptjs, a well-established, widely used pure-JavaScript implementation — not a hand-rolled version of the algorithm. Higher cost factors are deliberately slower (making brute-force attacks more expensive); 10–12 is a common default in 2026, though check current guidance for your use case. Everything runs locally in your browser — no password is ever sent to a server.