Generate and Verify Bcrypt Hashes Online
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About This Tool
The Bcrypt Hash Generator creates bcrypt password hashes with an adjustable cost factor — the right way to hash passwords for secure storage. It also verifies whether a plain-text password matches a stored bcrypt hash. Everything runs in your browser — passwords are never transmitted. Free, no account needed.
How to Use
- 1
Enter the password or string you want to hash in the input field.
- 2
Set the cost factor — 10 to 12 is recommended for most web applications.
- 3
Click Hash to generate the bcrypt hash and copy it for secure storage.
- 4
Switch to the Verify tab, paste a stored bcrypt hash, and enter the plain-text password to confirm it matches.
Frequently Asked Questions
What cost factor should I use for bcrypt?
A cost factor of 10-12 is standard — high enough to be slow for attackers but fast enough for normal login operations (under 300ms).
Why is bcrypt better than SHA for passwords?
Bcrypt is deliberately slow and includes a random salt, making rainbow table and GPU brute-force attacks computationally expensive.
Is this bcrypt tool free?
Yes. Completely free with no account required.
Why use Bcrypt for passwords?
Bcrypt is designed to be slow and resistant to brute-force attacks, making it one of the most secure choices for storing password data.