Bcrypt Generator & Validator Online (Free, Fast & Secure) – DataMorph
Compute secure bcrypt password hashes with customizable cost rounds. Verify plaintext passwords against existing hashes locally.
Bcrypt Hash Generator & Validator
Bcrypt is a password-hashing algorithm designed specifically for secure password storage. Unlike MD5 or SHA-256, bcrypt is intentionally slow and includes a built-in salt to prevent rainbow table and brute-force attacks. It is the recommended standard for password hashing in web applications.
What is Bcrypt?
Bcrypt produces a 60-character hash in the format: $2a$10$[22-char salt][31-char hash]. The $10$ is the cost factor (rounds) — each increment doubles computation time, making brute-force attacks exponentially harder as hardware improves.
Bcrypt Cost Factor Guide
- Rounds 4: ~1ms — testing only, never use in production
- Rounds 10: ~100ms — default, recommended for most applications
- Rounds 12: ~400ms — recommended for high-security apps
- Rounds 14: ~1.6s — very high security, may slow login UX
How to Use the Bcrypt Generator
- Enter the password or string you want to hash in the Password field
- Select the cost factor (rounds) with the slider — 10 is the recommended default
- Click Generate Hash to compute the bcrypt hash
- Copy the hash and store it in your database
- To verify: enter the plaintext password and the stored hash in the Verify section and click Verify Match
Frequently Asked Questions
How do I generate a bcrypt hash online?
Enter your password, set the rounds (cost factor), and click Generate Hash. The hash is computed locally in your browser using bcryptjs — nothing is sent to a server.
What is the bcrypt cost factor?
The cost factor controls how many iterations bcrypt performs. Rounds=10 takes ~100ms, rounds=12 takes ~400ms. Higher rounds = more secure but slower login. Default of 10 is recommended for most web applications.
What does a bcrypt hash look like?
Example: $2a$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy — $2a$ is the version, $10$ is the cost factor, followed by base-64 encoded salt and hash.
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