Generate Bcrypt Hash
Generate a bcrypt hash using your text. Increased rounds offer enhanced security but require more processing time.
Verify Bcrypt Hash
Check if a bcrypt hash matches the original text.
Frequently Asked Questions (FAQ)
What is bcrypt?
Bcrypt is a password hashing function created by Niels Provos and David Mazières. It is based on the Blowfish cipher and uses a built-in salt and adaptive cost factor to protect passwords against brute-force and rainbow table attacks.
How do I generate a bcrypt hash?
To generate a bcrypt hash, enter your password into the bcrypt password hash generator, choose a cost factor (rounds), and click generate. The tool will instantly create a secure bcrypt hash you can copy and use in your application.
How secure is bcrypt for password hashing?
Bcrypt is considered highly secure when configured correctly. Its adaptive cost factor makes it resistant to brute-force attacks. As of 2025, using a cost factor between 12 and 14 provides a strong balance between security and performance.
What is the bcrypt cost factor (rounds)?
The cost factor, also called rounds, defines how many iterations bcrypt performs when generating a hash. Each increase doubles the computation time. Higher cost factors improve security but require more processing power.
Is bcrypt better than SHA-256 for passwords?
Yes. Unlike SHA-256, bcrypt is designed specifically for password hashing. It is slow by design and includes salting automatically, making it far more secure against brute-force and GPU-based attacks.
Does this bcrypt generator store my passwords?
No. All bcrypt hashing is performed locally in your browser. Your passwords are never sent to a server, stored, or logged, ensuring complete privacy and security.
Can a bcrypt hash be decrypted?
No. Bcrypt is a one-way hashing algorithm and cannot be decrypted. Passwords can only be verified by hashing the input again and comparing it with the stored hash.
Why does bcrypt produce different hashes for the same password?
Bcrypt generates a unique random salt for every hash. This means the same password will always produce a different hash, which prevents attackers from identifying identical passwords.
What is a salt in bcrypt?
A salt is random data added to a password before hashing. Bcrypt automatically generates and stores the salt inside the hash, protecting against rainbow table and precomputed hash attacks.
What does a bcrypt hash look like?
A bcrypt hash looks like $2b$12$e9PpL8Y5s7sJ8xwYq1y2EuYyY1sX9N0E8b7x5pZ3kZb1J2Yw6qK. It contains the algorithm version, cost factor, salt, and hashed password in a single string.