Bcrypt Generator & Verifier

Securely hash strings and verify bcrypt hashes natively in your browser.

Whenever possible, your data never leaves your device. Your security is our priority.

Generate Hash

String to Hash

Salt Rounds (Work Factor)10

Warning: Values above 12 may cause your browser to freeze momentarily during calculation.

Verify Hash

Plaintext String

Bcrypt Hash

About this Tool

Bcrypt is an industry-standard password-hashing function designed by Niels Provos and David Mazières. Unlike fast hashing algorithms (like MD5 or SHA-256), Bcrypt incorporates "key stretching" and salts.

The algorithm is specifically designed to be computationally slow. By increasing the "Salt Rounds," the time it takes to compute a hash doubles with each increment. This intentionally limits how many passwords a hacker can guess per second during a brute-force attack.

How to Use

Generate a Hash

Enter your plaintext string, select your salt rounds (10-12 is modern standard), and generate. Note: High salt rounds will take longer to compute.

Verify a Hash

Because bcrypt generates a random salt, the same password hashed twice will look different. Use the Verification panel to check if a plaintext string matches an existing hash.

Frequently Asked Questions

No. Hashing is a one-way cryptographic process. You cannot 'decrypt' a hash back into text; you can only compare new text against the hash to see if they match.

Bcrypt is extremely CPU-intensive by design. If you select a high number of salt rounds (like 14+), it forces your device's processor to do massive amounts of math. Since JavaScript is single-threaded, this will pause the browser momentarily.

Bcrypt automatically generates a random 'salt' (a string of random characters) and attaches it to your password before hashing. This ensures that even if two users have the exact same password, their database hashes will look completely different.