Free Online Bcrypt Hash Generator
Generate secure Bcrypt password hashes with custom rounds or verify matches.
Generate and Verify Bcrypt Hashes
Bcrypt is a password-hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher. It incorporates a salt to protect against rainbow table attacks and is adaptive, allowing you to increase iteration rounds to keep calculations slow and secure.
Our free online Bcrypt hash generator offers secure tools:
- Bcrypt Hash: Cryptographically secure salt addition and hashing.
- Work Factor Tuning: Select cost rounds from 4 to 12.
- Bcrypt Verification: Validate if a plain password matches a given Bcrypt hash.
Key Benefits & Features
Modify execution speed rounds to future-proof server databases.
Verify password strings against hashes instantly.
Bcrypt calculations are executed in your browser sandbox.
How to Use the Bcrypt Hash Generator & Verifier Step-by-Step
This utility runs entirely inside your browser using client-side JavaScript. We prioritize your security: none of your inputted text is logged or stored.
- 1
Enter the password or text you want to hash.
- 2
Select the cost factor rounds (default is 10).
- 3
Click "Hash Password" and copy the resulting string.
Practical Examples
Password: password123, Rounds: 10
Frequently Asked Questions (FAQ)
What is Bcrypt cost factor?▼
The cost factor represents the number of iteration rounds (2^cost) the Blowfish cipher runs, slowing down computation to prevent brute force cracking.
Why does Bcrypt hash start with $2a$?▼
The prefixes (like $2a$, $2b$, or $2y$) identify the Bcrypt algorithm version used to compile the hash.
Why does Bcrypt generate different hashes for the same input?▼
Bcrypt automatically generates a unique random salt for every hashing session, ensuring identical passwords compile to distinct hashes.
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