Bcrypt Hash Generator
Generate bcrypt hashes — the right way to store passwords.
Each generation uses a fresh random salt, so the hash changes every time — that's expected with bcrypt.
How to use Bcrypt Hash Generator
- Enter the password/text to hash.
- Pick the cost factor — 10-12 is the standard balance of security and speed.
- Generate the bcrypt hash — note it includes the salt and cost, and differs each time.
- In production, use your framework's bcrypt function — never store passwords with MD5/SHA.
What is Bcrypt Hash Generator?
A bcrypt hash generator produces bcrypt hashes — the algorithm purpose-built for storing passwords. Unlike general hashes (MD5, SHA-256), bcrypt is deliberately slow and automatically salted: it takes a tunable amount of work per hash (making mass cracking expensive) and embeds a unique random salt (making precomputed rainbow tables useless).
That design is the whole point. Fast hashes are a virtue for checksums and a catastrophe for passwords — a GPU tries billions of SHA-256 guesses per second. Bcrypt's intentional slowness caps attackers at thousands per second, turning "cracked in minutes" into "cracked in years".
About the Bcrypt Hash Generator
Enter text and generate its bcrypt hash, with a selectable cost factor (work level).
The concepts developers need: the cost factor (rounds) — each increment doubles the work; 10-12 is the current standard, balancing security against server load, and it's tunable upward as hardware improves without changing code; the built-in salt — bcrypt generates and embeds a unique salt per hash, so the same password hashes differently every time (that's why two hashes of "password" don't match — and why rainbow tables can't help); and verification — you never decrypt a bcrypt hash (it's one-way); you re-hash the login attempt and let bcrypt's compare function check it.
Where bcrypt fits and doesn't: it's for password storage — user account passwords in a database. It is NOT for data integrity (use SHA-256), API signatures (use HMAC), or anything needing speed. Every framework has bcrypt built in (PHP's password_hash, and equivalents everywhere) — use those in production; this generator is for learning, testing and one-off hashes. Modern alternatives (Argon2, scrypt) are also strong; bcrypt remains a solid, universally-supported default.