Bcrypt Hash & Verify

Lösenordshashning

Hash a password

PasswordCost (rounds): 10

Verify a password

Existing bcrypt hashPlaintext to test

Bcrypt is intentionally slow. Each step up in cost roughly doubles the time. 10–12 is typical for web logins; 14+ for very high security.

Om det här verktyget

Generate bcrypt password hashes at any cost factor, or verify a plaintext password against an existing hash. Everything runs locally - passwords never leave your device.

Funktioner

Cost factor 4-14
Generate and verify in one tool
100% in-browser via bcryptjs
Copy hashes with one click

Så använder du det

Type a password and pick a cost.
Click Generate hash.
To verify, paste a hash and a candidate password.

🔒 100 % privat

Allt sker i din webbläsare med JavaScript och WebAssembly. Dina filer laddas aldrig upp, lagras aldrig och ses aldrig av oss.

Vanliga frågor

What cost should I use?

10-12 is typical for web logins. Higher = slower = more secure but worse UX.

Bcrypt vs Argon2?

Argon2 is the modern winner of the password hashing competition; bcrypt is older but still safe and widely supported.