Bcrypt Hash Generator

Generate adaptive salted password hashes using Bcrypt. The gold standard for modern application security.

HIGHER = SLOWER / MORE SECURE
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Why Use Bcrypt for Passwords?

1

Adaptive Hashing

Bcrypt is an adaptive function. By increasing the salt "rounds," you can make the hash slower, protecting against future increases in computing power.

2

Automatic Salting

Bcrypt automatically generates a unique salt for every hash, preventing "rainbow table" attacks and ensuring identical passwords have different hashes.

3

Brute-Force Protection

Because Bcrypt is intentionally slow, it makes brute-force and dictionary attacks computationally expensive and impractical for hackers.

Key Features

Customizable Rounds

Fine-tune the security level by adjusting the cost factor from 4 (fast) to 15 (extremely secure/slow).

Secure Client-Side

No data is sent to a server. All password hashing happens inside your browser's secure memory space.

Standard PHP/Node Format

Generates hashes in the standard `$2a$` or `$2b$` format compatible with PHP, Node.js, Python, and Ruby on Rails.

Frequently Asked Questions

What is the 'cost' factor?
The cost factor defines the number of iterations performed. Increasing it by 1 doubles the time it takes to compute the hash.
Is Bcrypt better than SHA-256?
For passwords, YES. SHA-256 is too fast, making it easy to brute-force. Bcrypt's intentional slowness is its greatest security feature.
Can I 'decrypt' Bcrypt?
No. Like all hashes, Bcrypt is a one-way function. You verify a password by hashing the login attempt and comparing it to the stored hash.