bcrypt generator

Generate bcrypt-style password hashes with configurable cost factor for secure password storage.

Bcrypt Generator is a free online tool that creates bcrypt-formatted hash strings from any text input. Bcrypt is one of the most widely recommended algorithms for password hashing, used by frameworks like Ruby on Rails, Django, and Spring Security. The adjustable cost factor allows you to balance security against computation time.

This tool is essential for developers testing authentication systems, generating sample hashes for documentation, or understanding how bcrypt cost factors affect hash generation. The cost factor ranges from 4 to 12, with higher values producing stronger but slower hashes — a deliberate design that makes brute-force attacks impractical.

All hash generation is performed entirely in your browser using the Web Crypto API for the underlying cryptographic operations. No passwords or hashes are transmitted to any server, ensuring complete privacy for your sensitive data.

With a clean interface, adjustable cost factor, and instant copy-to-clipboard functionality, this tool provides a convenient way to generate bcrypt hashes online. No registration, no downloads — just reliable hash generation on any device.