Bcrypt Generator & Validator Online (Free, Fast & Secure) – DataMorph

Generate bcrypt password hashes and verify plaintext passwords against existing hashes. Adjustable cost factor (rounds). Free online bcrypt tool — runs entirely in your browser.

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

  1. Enter the password or string you want to hash in the Password field
  2. Select the cost factor (rounds) with the slider — 10 is the recommended default
  3. Click Generate Hash to compute the bcrypt hash
  4. Copy the hash and store it in your database
  5. 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.