LazyTools

Password Hasher

Hash and verify passwords with Bcrypt or Argon2.

Configuration Parameters
Adjust the strength and performance factors
Recommended: 3+

Memory hard parameter

Number of parallel lanes

Size of derived key

Plaintext Password
Enter the password to hash locally

About Argon2

Argon2 is the winner of the Password Hashing Competition (PHC) and is the current industry-standard recommendation.

  • Argon2id: Hybrid mode. Safe against both side-channel attacks and GPU cracking.
  • Argon2i: Designed to prevent side-channel timing attacks (ideal for keys).
  • Argon2d: Maximizes GPU cracking resistance (good for cryptocurrency).

About Bcrypt

Bcrypt is a highly robust password hashing function based on the Blowfish cipher. It has been battle-tested since 1999.

  • Automatically handles salting internally.
  • Uses an adaptive work factor (cost) to scale over time.
  • Max password length is traditionally 72 bytes.
  • Hashed locally inside your browser via WebAssembly/JS.