bcrypt Generator
Generate secure salted bcrypt password hashes with customizable cost rounds directly in your browser without network leaks.
This tool runs in your browser.
Enter a value and choose a cost.
How to use
- 01Enter the plain text password or string to hash in the input field.
- 02Select the desired cost work factor rounds (10-12 recommended for security).
- 03Generate and copy the resulting standard bcrypt hash string.
FAQ
Can a bcrypt hash be reversed or decrypted back to plaintext?
No. bcrypt is a cryptographic one-way hashing function designed with an adaptive salt. It cannot be mathematically reversed, only verified against plaintext candidates.
What do cost rounds mean in bcrypt and what should I choose?
The cost round defines the key expansion work factor iterations. Increasing the round makes brute-force attacks exponentially slower. A factor of 10 to 12 is recommended.
Is it safe to type sensitive passwords into this generator?
Yes. All computation occurs locally inside your browser sandbox via JavaScript. No passwords or hashes are transmitted across the internet.