Bcrypt Generator

Hash and verify passwords with bcrypt

Bcrypt is a purpose-built password-hashing function that is intentionally slow and salted, making brute-force attacks expensive. This bcrypt generator lets you turn a plain value into a bcrypt hash and check an existing hash against a candidate value, so you can create test fixtures and confirm login logic without a backend.

How it works

Enter a value and choose a cost factor (work factor), and the tool generates a salted bcrypt hash locally in your browser. Higher cost factors take longer to compute and are harder to attack. To verify, paste a hash and the original value and the tool reports whether they match. All computation happens in JavaScript on your device, so nothing is uploaded.

How to use it

• Generate a bcrypt hash for a seed user in a test database.
• Confirm your application's verify step accepts the right password.
• Experiment with cost factors to balance security and speed.

For file integrity or checksums use the Hash Generator instead, since bcrypt is only for passwords. Need strong sample passwords to hash? Generate them with the Password Generator, or create identifiers with the UUID Generator.

Private and free

Because hashing and verification run entirely client-side, your values never leave the browser, with no upload, no account, and no tracking. It is free and works on every modern browser.