Bcrypt Generator

What Is the Bcrypt Generator?

Bcrypt is a password-hashing function designed to be slow and salted, so that stored passwords are hard to crack even if a database leaks. A real bcrypt hash looks like $2b$10$… followed by a 53-character hash, and verifying a password means re-hashing it with the same salt and cost and comparing the result. This page is intended to help you understand that workflow, but read the Limitations section carefully: the workspace on this page does not currently produce a usable bcrypt hash.

How to Use the Bcrypt Generator

1. Open the Bcrypt Generator page.
2. Type or paste a password into the workspace input.
3. Click Process.
4. Read the result panel. Do not treat the output as a finished bcrypt hash (see Limitations).
5. Use Copy to copy the output, Download to save it, or Clear to start over.

Worked Example

Entering the test password “Test123!” and clicking Process produced: “Bcrypt hash generation requires server-side processing. Input: Test123! Salt: $2b$10$5f51cf3b2dd66fa320c68a Note: Use a server-side bcrypt library for secure hashing.” In other words, the workspace returned a notice, echoed the input password, and showed only a partial salt. It did not return a complete 60-character bcrypt hash that could be stored or verified.

Limitations

• Important bug: the workspace does not generate a usable bcrypt hash. It returns a notice plus a partial salt, not a complete hash. Do not store this output as a password hash and do not use it for login verification.
• Security issue: the result echoes the password you entered in plain text (“Input: Test123!”). Do not enter a real password you use anywhere. Use a test password only, and close the tab when finished.
• There is no cost-factor selector, no salt control, and no verify-password field. You cannot choose cost 10 vs 12, and you cannot check a password against an existing hash here.
• There is no password-strength check. A weak password such as “123456” would be treated the same as a strong one.
• For real use, generate and verify bcrypt hashes with a server-side bcrypt library in your application, as the tool’s own notice advises.

Frequently Asked Questions

Does this page produce a real bcrypt hash?

No. When tested with “Test123!”, it returned a notice and a partial salt, not a complete bcrypt hash. Use a server-side bcrypt library for real hashing.

Should I enter my real password here?

No. The result echoes your input in plain text. Enter only a test password you do not use anywhere else.

Can I verify a password against an existing hash?

No. The workspace has no verify field. Verification must be done in your application with a bcrypt library.

What does the $2b$10$ prefix mean?

In a real bcrypt hash, $2b$ identifies the bcrypt algorithm version and $10$ is the cost factor (2^10 rounds). The output here showed only a partial salt starting with that prefix, not a full hash.