Bcrypt Hash Generator

Generate and verify bcrypt password hashes

Salt Rounds
10
Generation Time
0ms
Hash Length
60 chars

Generate Hash

Create a bcrypt hash from a password

Balanced
Higher rounds = more secure but slower. Recommended: 10-12
Real Bcrypt
This tool uses real bcrypt (bcryptjs) on the server side with the Blowfish cipher. Hashes are production-grade.

Verify Hash

Check if a password matches a hash

Hash Structure

Understanding bcrypt hash format

About Bcrypt

What is Bcrypt?

Bcrypt is a password hashing function designed by Niels Provos and David Mazières. It's based on the Blowfish cipher and incorporates a salt to protect against rainbow table attacks. The algorithm is intentionally slow to make brute-force attacks impractical.

Key Features

  • Adaptive function - can be made slower as computers get faster
  • Incorporates a salt to prevent rainbow table attacks
  • Intentionally slow to resist brute-force attacks
  • Industry standard for password hashing
  • One-way function - cannot be reversed

Generate bcrypt hashes for secure password storage. Bcrypt is designed specifically for hashing passwords with built-in salt and configurable work factor (cost). It's intentionally slow to resist brute-force attacks, making it the industry standard for password hashing.

Key Features

  • Generate bcrypt password hashes
  • Configurable cost factor (salt rounds)
  • Built-in random salt generation
  • Verify passwords against bcrypt hashes
  • Industry-standard password hashing

How to Bcrypt Hash Generator

  1. 1

    Enter password

    Type the password to hash.

  2. 2

    Set cost factor

    Choose the number of salt rounds (10-12 recommended).

  3. 3

    Copy bcrypt hash

    Click copy for the bcrypt hash string.

Common Use Cases

  • Hashing passwords for database storage
  • Generating password hashes for user registration systems
  • Verifying passwords against stored bcrypt hashes
  • Testing password hashing in development

Frequently Asked Questions

What cost factor should I use?
Cost factor 10-12 is standard for most applications. Higher values are more secure but slower. Each increment doubles the computation time.
Can I decrypt a bcrypt hash?
No. Bcrypt is a one-way hash function. You can only verify a password against a hash, not reverse it.

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