Generate secure bcrypt hashes from passwords and verify passwords against existing hashes. Processing happens server-side — never in JavaScript.
🔐 Generate Bcrypt Hash
Password
Cost Factor (rounds: 210 = 1024 iterations)
10
✅ Verify Password
Password to verify
Bcrypt hash
✓ Password matches the hash
✗ Password does not match
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Adaptive hashing
Bcrypt automatically salts passwords and the cost factor makes it progressively slower as hardware improves.
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Server-side processing
Unlike JavaScript implementations, this runs real bcrypt on the server via PHP's password_hash() function.
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Industry standard
Bcrypt is the most widely recommended password hashing algorithm for web applications — used by WordPress, Laravel, Django and thousands more.
Frequently Asked Questions
What cost factor should I use?
Cost 10 is the default and is suitable for most applications — it takes about 100ms per hash on a modern server. Cost 12 is recommended for high-security applications. Never go below 10 in production.
Why does bcrypt include a salt?
Bcrypt automatically generates a random salt for each hash. This means two identical passwords produce completely different hashes, preventing rainbow table attacks.
Can I use this to hash passwords for my database?
Yes — the output is a standard bcrypt hash compatible with PHP password_verify(), Python bcrypt, Node.js bcryptjs and all major frameworks. Use cost 10-12 for production.