Bcrypt Generator
Generate and verify bcrypt password hashes with configurable cost factor
Bcrypt Generator
Bcrypt Info
Cost Factor Impact
Higher cost factors increase security but take longer to compute. Each increment doubles the computation time.
| Cost | Iterations | Approx. Time |
|---|---|---|
| 8 | 256 | ~40ms |
| 10 | 1,024 | ~100ms |
| 12 | 4,096 | ~400ms |
| 14 | 16,384 | ~1.5s |
| 16 | 65,536 | ~6s |
Usage Examples
Hash a Password
Generate a bcrypt hash for a password with the default cost factor of 10. Ideal for most applications.
Verify a Password
Check if a password matches a given bcrypt hash. Useful for testing authentication flows.
High Security Hash
Generate a hash with higher cost factor (12) for enhanced security in sensitive applications.
Features
Bcrypt Hashing
Industry-standard bcrypt password hashing based on the Blowfish cipher with adaptive cost factor
Configurable Cost
Adjust cost factor from 4 to 31 to balance security and performance for your use case
Hash Verification
Verify any password against its bcrypt hash to test authentication and validate hashes
100% Client-Side
Pure JavaScript bcrypt implementation. Your password never leaves your browser
How to Use?
Enter Password
Type or paste the password you want to hash in the Hash tab.
Set Cost Factor
Choose a cost factor (default 10). Higher values are more secure but slower.
Generate or Verify
Click Generate Hash to create a bcrypt hash, or use the Verify tab to check a password against a hash.
Frequently Asked Questions
What is Bcrypt?
Storing passwords in plain text? Please do not. Bcrypt is the hashing function built specifically for passwords. It adds a random salt automatically and has a cost factor you can crank up as hardware gets faster. Every hash takes deliberate effort to compute, which is exactly what makes brute-force attacks impractical. Most web frameworks (Django, Rails, Laravel, Spring) support it natively.
Why Use This Bcrypt Generator?
Paste a password, pick a cost factor, get a hash. Need to verify? Switch to the Verify tab and check a password against an existing hash. Everything runs client-side in pure JavaScript, so your passwords never touch a network. Great for generating test hashes during development or verifying production hashes without spinning up your app.