How it works
How to use the Bcrypt Generator & Checker
Paste or open your input
Type, paste or drop a file into the left editor — or press Sample to try it.
Adjust the options
Choose a cost factor (10–12 is typical) to create a hash, or paste a hash in “Verify against” to test a password.
Copy or download the result
Copy the output or download it as a file.
About the Bcrypt Generator & Checker
Bcrypt is a deliberately slow, salted password hash used by most web frameworks (Laravel, Rails, Spring Security, Django, ASP.NET Identity and many Node libraries). Each hash embeds its cost factor and a random salt, so the same password produces a different hash every time.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
Which cost factor should I choose?
Pick the highest cost that keeps login fast on your server — typically 10–12 today. Each step doubles the work for you and for an attacker.
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you type, paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
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