Bcrypt Hash Generator/Checker
5 toolsGenerate a bcrypt hash or check a password against one.
Runs in your browser — your files and text stay on your device
Generate a bcrypt hash or check a password against an existing one. Bcrypt is deliberately slow, which makes guessing passwords expensive, and a higher cost setting makes it slower still. It runs in your browser, but avoid typing a real password into any site you don't trust.
Rounds (cost factor)10
How to use this tool
- 1Generate a bcrypt hash from a password and cost factor, or check a password against an existing hash.
- 2Everything runs locally in your browser.
Frequently asked questions
What is bcrypt used for?
Securely hashing passwords for storage — unlike plain SHA hashes, it's deliberately slow and salted to resist brute-force attacks.
What should the cost factor be?
10-12 is a common default balancing security and performance; higher is slower but more resistant to brute-forcing.
Is my password sent anywhere?
No — hashing and comparison both run locally using a JavaScript bcrypt implementation.