🔐 Bcrypt Hash
Generate Bcrypt password hash and verify password matches

🔐 Generate Hash

Example: password123
10
💡 Tip: Higher rounds are more secure but slower to generate. Recommended: 10-12. Bcrypt hashes include salt, so each generation produces different results.

✓ Verify Password

Example: password123
Example: $2a$10$abcdefghijklmnopqrstuv
Waiting for verification...
💡 Tip: Compare the input string with the Bcrypt hash. The result will show whether they match.

⚡ Quick Examples

Complete Test Flow:
1. Click "Password Generation" to load example password
2. Click "Generate Hash" to create hash value
3. Copy hash to verification area
4. Click "Verify Match" to test result

What is Bcrypt Hash?

Bcrypt is a password hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher. It's specifically designed for password security and includes a built-in salt mechanism to protect against rainbow table attacks. Unlike fast hash functions like MD5 or SHA256, bcrypt is intentionally slow to compute, making brute-force attacks much more difficult.

Why Use Bcrypt for Password Hashing?

  • ✓ Adaptive Security: The salt round parameter (cost factor) can be adjusted to increase security as computing power improves over time.
  • ✓ Built-in Salt: Each bcrypt hash includes a unique salt, preventing rainbow table attacks and ensuring identical passwords produce different hashes.
  • ✓ Computationally Expensive: Designed to be slow to compute, making brute-force attacks impractical even with powerful hardware.
  • ✓ Industry Standard: Widely used by major platforms including Linux system passwords, Ruby on Rails, and many web applications.

How to Use This Bcrypt Tool

  1. Generate Hash: Enter your password, select salt rounds (10-12 recommended), and click "Generate Hash" to create a secure bcrypt hash.
  2. Verify Password: Enter a password and paste an existing bcrypt hash to verify if they match.
  3. Adjust Security: Higher salt rounds increase security but also computation time. Start with 10 rounds for most applications.

Bcrypt Hash Format

A bcrypt hash follows this format: $2a$10$abcdefghijklmnopqrstuv

  • $2a$: Bcrypt algorithm version
  • 10: Cost factor (salt rounds)
  • abcdefghijklmnopqrstuv: 22-character salt + encoded hash
🔒 Security Note:

This tool runs entirely in your browser and does not send any data to servers. For maximum security, consider using this tool in a secure context (HTTPS) and clear your browser cache after use. Bcrypt is designed for password storage, not for encrypting sensitive data.