Bcrypt Generator & Verifier
Generate and verify Bcrypt password hashes with adjustable cost factors.
Using bcrypt for password checks
Bcrypt stores a password as a salted hash, not as the original text. Use this page when you need a test hash, want to check a stored hash, or need to see how changing the cost factor affects generation time.
It is useful for test hashes and demos, but production password handling should still live in your application backend.
Cost factor
Higher cost values take longer to compute. That delay is intentional: it makes bulk guessing more expensive. Start with a value your app can tolerate, then measure it on the hardware that will run the login flow.
- 8-9: Fast enough for demos and quick checks.
- 10-12: A common range to benchmark for web apps.
- 13+: Slower, and worth testing carefully before using in a live login path.
Notes
Bcrypt adds a salt automatically, so hashing the same password twice should produce different strings. Verification checks whether the password matches the hash; it does not recover the original password.
How to use Bcrypt Generator & Verifier
The bcrypt generator creates password hashes and can verify a password against an existing hash. It is useful for local tests and auth debugging.
Developers often use this page when they need bcrypt generator, bcrypt hash generator, bcrypt password generator, and bcrypt verify.
Privacy and data handling
This tool is meant for local bcrypt tests, password fixtures, and match checks.
- Use test passwords instead of real user passwords.
- Generated hashes are displayed on the page and can be copied through your browser clipboard.
- Production password handling should still happen in your backend auth flow.
Examples
Generate a bcrypt hash for tests
Input
password123Output
$2b$10$exampleSaltAndHashValueForLocalTestingOnlyUse generated hashes for local fixtures. Do not paste real user passwords.
Steps
- 1Enter a password or test value.
- 2Choose a cost factor if the tool supports it.
- 3Generate the bcrypt hash or verify a password against a hash.
Common use cases
- Create a test password hash for a local database.
- Check whether a password matches a stored bcrypt hash.
- Learn how cost factor changes hashing time.
Practical tips
- Do not paste real user passwords.
- Higher cost is slower and can be safer, but it must fit your server load.
- Store only the hash, never the plain password.
FAQ
Is bcrypt better than MD5 for passwords?
Yes. Bcrypt is designed to be slow and salted, which makes password guessing harder than with fast hashes like MD5.
What bcrypt cost should I use?
Use a cost that is slow enough to resist guessing but fast enough for your login flow. Many teams benchmark it on their own servers.