Is it safe to test passwords in this verifier?

Yes. All cryptographic verification runs 100% locally in your web browser. No plain text passwords or hashes are ever transmitted to any server.

Which Bcrypt versions are supported?

Supports standard Modular Crypt Format Bcrypt strings including $2a$, $2b$, and $2y$ prefixes with any cost factor from 4 to 31.

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Cryptography

Verify plain text passwords against Bcrypt hashes and inspect cost and salt rounds.

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Generate salted bcrypt hashes and verify test passwords locally

Generate Bcrypt, MD5, and SHA-1 password hashes for Apache and Nginx HTTP Basic Auth

Create strong random passwords

Enter your plain text password in the top field.
Paste the target Bcrypt hash string ($2a$10$...) in the second field.
Click "Verify Password Against Hash".
View the match confirmation banner and inspect the hash anatomy (version, cost rounds).

Is it safe to test passwords in this verifier?: Yes. All cryptographic verification runs 100% locally in your web browser. No plain text passwords or hashes are ever transmitted to any server.
Which Bcrypt versions are supported?: Supports standard Modular Crypt Format Bcrypt strings including $2a$, $2b$, and $2y$ prefixes with any cost factor from 4 to 31.

Review policy: references and behavior notes are checked whenever the tool implementation changes.