Bcrypt Hash Generator
Bcrypt is designed to be slow, which slows down brute-force attacks. This tool hashes a password with a configurable cost factor and can verify a hash, all in your browser.
Key Features
- Adjustable cost factor
- Generates a salt automatically
- Verify a hash against a password
- Shows the full hash format
- Local only
Use Cases
- Hash a password before storing it
- Verify a stored bcrypt hash
- Pick a sensible cost
- Teach password hashing
How to Use
- Enter the password
- Set the cost factor
- Generate the hash
- Copy or verify it
Practical Tips
- Higher cost means slower logins and harder cracking
- Never roll your own crypto primitives
- Store the whole hash, salt included
FAQ
- What cost should I use?
- As high as your servers can afford, often 10 to 12.
- Bcrypt vs Argon2?
- Argon2 is newer; bcrypt is still widely supported.