Home /
Tools /
Security & Encryption /
Bcrypt Hash Generator

🔑

Security & Encryption

Bcrypt Hash Generator

Generate Bcrypt password hashes with custom cost factor.

Workspace

Run the tool here

Browser utility

Input

Cost factor

Output

Run the workspace to see the response here.

How to use

Enter the password.
Choose a cost factor — 10–12 is typical.
Store the full hash, including the salt and cost prefix.

About this tool

Hash a password with bcrypt and a configurable cost factor, the correct choice for password storage.

Bcrypt Hash Generator is part of the TmpMailer Security & Encryption set — free browser utilities that open instantly, need no account, and pair well with a temporary-email workflow when you just need a quick result.

Common use cases

Preparing test fixtures with realistic password hashes.
Understanding how cost affects hashing time.
Verifying a bcrypt hash format.

Common questions

Why does the same password produce different hashes?

Each hash uses a fresh random salt. That is intentional and prevents precomputed attacks.

What cost factor should I use?

Pick the highest value your server can afford per login, commonly 10–12. Re-test as hardware improves.

Can I decode a bcrypt hash?

No. Verify by hashing the candidate password and comparing, which is what the login flow does.

Related tools

🔒

MD5 Hash Generator

Generate MD5 hash for any text or file.

🔒

SHA-256 Hash Generator

Generate SHA-256 hash for any text.

🔒

SHA-512 Hash Generator

Generate SHA-512 hash for any text.

🔐

AES Encrypt/Decrypt

Encrypt and decrypt text using AES-256-CBC.

🔀

ROT13 Cipher

Encode and decode text using the ROT13 cipher.

🔀

Caesar Cipher

Encode and decode text using the Caesar cipher with cust...