What is Bcrypt Hash Generator & Verifier?
The Bcrypt Hash Generator & Verifier is a cryptographic security tool that generates salted Bcrypt hashes for secure password storage. It also allows you to verify if a plain text password matches an existing Bcrypt hash. Bcrypt is a slow, adaptive hashing algorithm that uses a work factor (rounds) to prevent brute-force attacks, making it the industry standard for user credential safety.
How to Use Bcrypt Hash Generator & Verifier
- To generate a hash, enter the plain text password in the Generator tab, choose a work factor (default is 10), and click 'Generate'.
- To verify a password, switch to the Verifier tab, paste the plain text password, paste the Bcrypt hash string, and click 'Verify'.
- The tool outputs the computed hash, salt, and verification status securely, running entirely in-browser.
Common Use Cases
- Backend developers creating initial admin user passwords manually to seed a SQL database.
- QA engineers testing authentication modules by verifying computed hashes against database values.
- Systems administrators validating legacy password hashes during schema migrations.
Pro Tips & Best Practices
- A higher work factor (rounds) increases the CPU time required to compute the hash. Factor 10 is recommended for general websites. Avoid values over 13 on shared hosting, as it will slow down logins.
- Bcrypt hashes always start with `$2a$`, `$2b$`, or `$2y$`, followed by the work factor, and contain 60 characters.