1–20 · Higher = stronger but slower. 10–12 typical.
What is Bcrypt?
Bcrypt is a password-hashing function designed to be slow and resistant to brute-force attacks. It uses a configurable cost factor (rounds) that controls how many iterations are performed - higher cost means a stronger hash but takes longer to compute. Bcrypt automatically generates a random salt for each hash, so the same password hashed twice will produce different (but both valid) hashes.
Bcrypt is widely recommended for storing passwords in applications. It is used by many frameworks and languages (e.g. Laravel, Node.js, PHP, Python). All hashing is performed entirely in your browser using JavaScript (bcryptjs), ensuring your password never leaves your device.
Use this tool to generate bcrypt hashes for testing, development, or migrating password storage. For production, use your framework's built-in password hashing (e.g. Laravel Hash::make()).
How to Use the Bcrypt Generator
- Enter the text you want to hash in the input above
- Set the cost factor with the slider (1–20; 10–12 is typical)
- Click "Generate Bcrypt Hash" to create the hash
- Click the copy button to copy the hash to your clipboard
Bcrypt vs Other Hashes
Bcrypt vs MD5/SHA: MD5 and SHA (e.g. SHA256) are fast one-way hashes. They are not designed for passwords because attackers can try billions of guesses per second. Bcrypt is intentionally slow and uses a salt, making it suitable for password storage.
Cost factor: The cost (rounds) doubles the work each time you increase by 1. Cost 10 takes ~100ms; cost 12 takes ~400ms. Use 10-12 for most applications.
Frequently Asked Questions
What is bcrypt and why use it for passwords?
Bcrypt is a password-hashing function designed to be slow and resistant to brute-force and rainbow table attacks. It uses a random salt and a configurable cost factor. It is widely recommended for storing user passwords in applications.
What cost factor should I use?
Cost 10 is the default and is suitable for most applications. Cost 12 is stronger and recommended if you want extra security. Higher cost (13, 14) increases security but also hashing time - use for high-security scenarios.
Is the bcrypt generator secure and private?
Yes. All hashing is performed entirely in your browser using JavaScript (bcryptjs). Your password or text is never sent to our servers or stored anywhere. Complete privacy and security.
Is this bcrypt generator free?
Yes, our bcrypt generator is completely free. No registration, no limits. All processing happens in your browser.