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Hash and verify passwords with bcrypt using practical cost-factor controls.
Higher rounds exponentially increase the time needed to crack the hash but also increases generation time. 10-12 is recommended for modern web apps.
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Bcrypt verification is safe to perform client-side as the hash contains the salt needed for comparison. No data is sent to the server.
Enter the plaintext password or test value.
Set the bcrypt cost factor based on your target security/performance profile.
Generate a hash and copy it into your auth flow or seed data.
Use the verify section to test whether a plaintext value matches a stored hash.
Login/password auth development
Migration testing from legacy hash schemes
QA validation of auth endpoints
Security training and demonstrations
Bcrypt remains a common password-hashing baseline because it is intentionally slow and tunable. The tunable cost factor helps teams adapt to hardware changes over time.
This page is optimized for utility intent: quickly generate hashes, verify matches, and move back into application code with minimal friction.
Benchmark cost-factor settings in your own deployment environment to balance login latency and brute-force resistance.