Generate bcrypt hash

Create a bcrypt password hash with a random salt and selected cost.

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ToolBcrypt Hash Generator
Input
Output
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Preview

How it works

Bcrypt expands a password and a random salt through an EksBlowfish key schedule for the selected cost, then encodes the salt and derived checksum in its modular crypt format. The cost doubles the key-schedule work for each increment.

  • A per-password salt separates equal passwords; cost raises offline work.

Worked example

Hash Password
Generate a bcrypt hash for secure password storage (output varies due to random salt)
Input
											my-secret-password
Output
												$2b$10$KEpGjgx8hbjnrlKCPMEar.cYzK8KYGN9RDG/Gb7NytN2I3clZyNmG

When to use this

Legacy account stores, import migrations, and bcrypt test vectors create password hashes.

Edge cases

  • Passwords beyond bcrypt’s effective input limit need a migration plan.
  • A reused salt makes equal passwords visibly equal.
  • Raising cost increases login latency and resource use.

References