Can I verify an existing bcrypt hash?

Yes. Enter the plain text password and the bcrypt hash to verify whether they match. This is useful for debugging authentication code.

Why use bcrypt instead of MD5 or SHA-256 for passwords?

MD5 and SHA-256 are fast hashing algorithms — a GPU can test billions per second. Bcrypt is intentionally slow (adjustable via the cost factor), making brute-force attacks computationally infeasible.

Is bcrypt processing done in the browser?

Yes. The bcryptjs JavaScript library handles all hashing in your browser. No data is sent to any server.

Bcrypt automatically generates a unique random salt for each hash. Two hashes of the same password will be different — this prevents rainbow table attacks.

Security ToolsFree

Bcrypt Generator

Hash passwords using the bcrypt algorithm with a configurable cost factor (work rounds). Verify bcrypt hashes against plain text. Uses the bcryptjs library entirely in-browser — no server, no signup. Essential for developers testing authentication systems.

Updated June 2026

1Enter the text to hash
2Set the salt rounds
3Copy the bcrypt hash

Password to hash

Cost factor: 10

Verify password against hash

How to use Bcrypt Generator

1
Enter the text to hash
Type or paste the plaintext password or string.
2
Set the salt rounds
Higher rounds are more secure but slower to compute.
3
Copy the bcrypt hash
Grab the generated hash for storage or comparison.

Frequently asked questions

Everything you need to know about bcrypt generator.

Cost factor 10 is the standard recommendation for most web applications. Cost 12 is more secure but adds noticeable latency on login. Cost factors above 14 are typically only needed for high-security applications.

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Bcrypt Generator

How to Use Bcrypt Generator

Frequently Asked Questions

How to use Bcrypt Generator

Enter the text to hash

Set the salt rounds

Copy the bcrypt hash

Frequently asked questions

Explore more category tools

How to Use Bcrypt Generator

Frequently Asked Questions

How to use Bcrypt Generator

Enter the text to hash

Set the salt rounds

Copy the bcrypt hash

Frequently asked questions

−What cost factor (work factor) should I use for bcrypt?

+Can I verify an existing bcrypt hash?

+Why use bcrypt instead of MD5 or SHA-256 for passwords?

+Is bcrypt processing done in the browser?

+What is bcrypt salt?

Explore more category tools