Bcrypt generator

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About Bcrypt Generator

Bcrypt Generator hashes a password using the bcrypt algorithm. It is the standard hash for user passwords and is widely supported across languages.

How to use it

Enter a password and a cost factor. The bcrypt hash appears below.

Common use cases

Hashing passwords during development. Verifying bcrypt outputs.

When building an app or script that stores user passwords, you should never keep them as plaintext. Bcrypt is a password-hashing function that turns a passphrase into a salted, slow-to-crack hash, making it a far safer choice for login systems than a fast generic hash. This generator computes a bcrypt hash of any text you enter.

The output includes the salt automatically, so every run produces a different hash for the same password — exactly what you want from a modern password-hashing function. Paste the resulting hash into your database, config or seed data.

How to Generate a Bcrypt Hash

Enter the password or text you want to hash.
Read the bcrypt hash the tool returns, complete with its embedded salt.
Copy the hash and store it wherever your app expects the stored credential.

Practical Use Cases

Create a bcrypt hash to seed a database with a default admin credential, generate a test hash for a login unit test, understand the salted, work-factor-shaped output your framework stores, and produce a hash to compare against an existing stored value while debugging authentication.

Bcrypt — common questions

Why is bcrypt preferred over a fast hash with passwords?

Bcrypt is deliberately slow and salted, which makes brute-forcing and rainbow-table attacks far more expensive. That is why most modern frameworks recommend it for stored passwords.

Why does the same password produce a different hash each time?

Bcrypt embeds a random salt into every hash, so each run yields a different result — even for the same input. You store that hash as-is, and verification recomputes it against the stored salt.

What should I do with the generated hash?

Store it in your database, config file or seed script where your application reads credentials. Because each run differs, generate the final hash you actually deploy at the moment of seeding so the stored value matches what users will verify against.