Tools/Bcrypt Generator
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Bcrypt Generator & Checker

Generate and verify secure bcrypt hashes locally for testing and database seeding.

Generate Hash
10

Higher rounds mean exponentially slower generation, increasing security against brute-force attacks.

Verify Hash

About Bcrypt Generator & Checker

Generate secure bcrypt password hashes and verify existing hashes entirely offline in your browser. Bcrypt is a widely trusted password hashing algorithm used by developers to securely store user credentials. Adjust the salt rounds (work factor) to balance security and performance. Perfect for testing, database seeding, and development workflows.

How to use this tool:

  1. Enter the password or string you want to hash in the "Generate Hash" section.
  2. Adjust the salt rounds slider to set the desired work factor (higher = more secure but slower).
  3. Click "Generate Bcrypt Hash" to produce the hash.
  4. To verify a hash, enter the original string and the bcrypt hash in the "Verify Hash" section and click "Compare".

Frequently Asked Questions

What are salt rounds in bcrypt?

Salt rounds (also called the work factor) determine how many times the hashing algorithm iterates. Higher values exponentially increase computation time, making brute-force attacks much harder.

What salt round value should I use?

A value of 10-12 is recommended for most applications. Higher values like 14-16 provide more security but significantly increase hashing time.

Is this tool safe for production passwords?

This tool is designed for development and testing. For production systems, always hash passwords server-side using your framework's built-in bcrypt library.

🔒 Are my files uploaded to a server?

No. MyConverterPro processes all files locally inside your browser using client-side JavaScript. Your data never leaves your device, ensuring 100% privacy and security.

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In-Depth Guide

Bcrypt Hash Generator and Verifier

Generate industry-standard bcrypt password hashes with configurable salt rounds — and verify passwords against existing hashes — all locally in your browser.

MyConverter Pro Team6 min readBcrypt, Password, Hashing

✓Key Takeaways

  • Generate bcrypt password hashes with configurable salt rounds (4-14)
  • Verify plain-text passwords against existing bcrypt hashes
  • Bcrypt is the industry standard for secure password storage
  • All hashing runs locally in your browser — passwords never leave your device

Bcrypt is the gold standard for password hashing in modern web applications. Unlike generic hash functions (MD5, SHA-256) that are designed to be fast, bcrypt is deliberately slow — and that is exactly what makes it secure. When a database of password hashes is leaked, attackers attempt to crack them by hashing billions of candidate passwords and comparing the results. With fast algorithms like MD5 or SHA-256, modern GPUs can compute billions of hashes per second, cracking most passwords in minutes. Bcrypt's intentional slowness (controlled by the "salt rounds" or "work factor" parameter) makes each hash computation take tens or hundreds of milliseconds, reducing brute-force attack speed by orders of magnitude.

Our Bcrypt Generator provides two essential functions: generating bcrypt hashes from plain-text passwords and verifying plain-text passwords against existing bcrypt hashes. Both operations run entirely in your browser using the bcryptjs library — a pure JavaScript implementation of the bcrypt algorithm. This is critically important because the data involved (passwords and password hashes) is the most sensitive data in any authentication system. Sending this data to a remote server for processing would be a fundamental security violation.

The tool gives you full control over the work factor (salt rounds). The default value of 10 provides a good balance between security and performance, producing a hash in approximately 100 milliseconds. Increasing the rounds to 12 quadruples the computation time (approximately 400ms), making brute-force attacks proportionally harder. Each additional round doubles the cost. For most web applications, 10-12 rounds provides excellent security while keeping login response times under a second.

The verification feature is equally valuable for development workflows. When debugging authentication issues, you often need to check whether a specific password matches a specific hash stored in your database. Our tool lets you paste both values and instantly verify the match — without writing test code, spinning up a REPL, or exposing the password to any external service.

Continue reading the complete 6 min guide…

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Frequently Asked Questions

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