Bcrypt Generator — Free Online Bcrypt Hash Generator & Verifier
Generate and verify bcrypt password hashes with configurable cost factor — 100% in-browser.
Jump to tool ↓Frequently Asked Questions
Why Bcrypt for Password Hashing?
Storing passwords securely is one of the most critical responsibilities in application security. Using a general-purpose hash like MD5 or SHA-256 for passwords is insufficient because these algorithms are designed to be fast — and fast hashing benefits attackers brute-forcing stolen hash databases.
Bcrypt was designed specifically for password hashing. It incorporates a salt(random data mixed into each hash) to prevent rainbow table attacks, and a cost factorthat controls computation time. As hardware improves, you can increase the cost factor to keep hashing slow enough to resist brute force.
A bcrypt hash looks like: $2b$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWyThe $2b$ is the algorithm version, $10$ is the cost factor, and the rest is the salt + hash.
Standards & References
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