What is a Bcrypt Hash Generator?
Bcrypt is an industry-standard password-hashing function designed to be highly resistant to brute-force search attacks. This Bcrypt Hash Generator and Checker allows developers to quickly generate secure hashes from plain text passwords, configure salt rounds to balance security and performance, and validate whether a specific password matches an existing Bcrypt hash.
How to Use the Bcrypt Tool
Follow these simple steps to generate or compare your Bcrypt hashes securely:
Select an Action
Choose the "Generate Hash" tab if you want to encrypt a new password, or select the "Compare" tab to verify an existing hash.
Enter Data & Configure
Input your plain text password. If generating, select your desired salt rounds (work factor) from 4 to 16. Default is usually 10.
Process & Verify
Click the action button. The tool will generate the secure hash + salt, or verify if the provided password matches the target hash.
Key Features
Client-Side Security
Your passwords are never sent to a server. The Bcrypt algorithm runs entirely in your browser using JavaScript.
Adjustable Salt Rounds
Customize the computational cost (work factor) to simulate various database and server security standards.
Instant Verification
Easily debug authentication endpoints by comparing raw strings against database hashes in real-time.
Frequently Asked Questions (FAQ)
Can a Bcrypt hash be decrypted?
No, Bcrypt is a one-way hashing algorithm, meaning it cannot be "decrypted" back to the original password. Passwords are verified by hashing the user input and comparing it to the stored hash.
What are salt rounds (work factor)?
Salt rounds dictate the cost and time it takes to compute the hash. Higher rounds increase the time it takes to hash a password, making brute-force and dictionary attacks exponentially harder for hackers.
What is the recommended number of rounds?
A round count of 10 to 12 is generally recommended for modern web applications. It provides an excellent balance between security against hardware attacks and server response time.
Why does the same password generate different hashes?
Bcrypt automatically generates a unique, random "salt" for every hash operation. This ensures that even if two users have the same password, their resulting hashes will be entirely different, preventing rainbow table attacks.
Is my password logged?
Absolutely not. This entire application is processed locally within your device's browser. We do not store, track, or transmit your plain text passwords or hashes to any external server.