Bcrypt Hash Generator
Generate bcrypt password hash (cost configurable).
About the Bcrypt Hash Generator
This Bcrypt Hash Generator creates bcrypt password hashes for development, migrations, and controlled admin setup tasks. Bcrypt is a slow, adaptive password hashing function designed so stolen hash databases are expensive to brute force — unlike plain MD5/SHA stored as “passwords”.
Enter a password and cost factor, generate the hash, then store only the hash in your user table. Use the companion verify tool to check a password against an existing hash.
When to use bcrypt here
- Seeding a local admin user during project setup
- Verifying how your app’s cost factor looks in the resulting hash string
- Learning the shape of bcrypt outputs before wiring auth code
How to use
- Enter the password you intend to hash (prefer a temporary one for online tools).
- Choose a cost appropriate to your environment (higher = slower = harder to attack).
- Generate and copy the hash into your secure configuration or DB seed — never into public repos.
Security notes
- Do not hash real production user passwords in a third-party browser tool when avoidable — use your app’s server-side hasher.
- Never store plaintext passwords. Never log hashes alongside the original password.
- Pair registration/login with rate limiting and modern session practices.
FAQ
Is bcrypt encryption? No. It is one-way hashing. You verify by hashing the attempt and comparing.
What cost should I pick? Follow your framework defaults and benchmark login latency on your hardware.