Bcrypt Generator & Validator

Bcrypt is a password hashing function designed specifically for securely storing passwords. Unlike fast hash functions like MD5 or SHA-256, bcrypt is intentionally slow with configurable computational cost (work factor), making brute-force attacks impractical. It automatically handles salting and is resistant to rainbow table attacks.

Bcrypt uses the Blowfish cipher and incorporates a cost factor that determines how many iterations the algorithm performs. This adaptive approach means as computers get faster, you can increase the cost factor to maintain security. Bcrypt is the industry standard for password storage, used by major platforms and recommended by security experts.

Bcrypt provides the gold standard for password security with built-in salt generation, configurable work factors, and resistance to brute-force attacks. Unlike simple hashes, bcrypt's computational cost makes cracking passwords prohibitively expensive, even with modern GPUs. It's the recommended choice for storing user passwords in databases.

Our bcrypt tool operates entirely in your browser with client-side processing, ensuring your passwords and hashes never leave your device. This provides maximum security when testing password hashing, validating existing hashes, or learning about secure password storage without trusting external servers.

The tool is valuable for developers implementing authentication systems, security engineers auditing password storage, DevOps teams testing password configurations, penetration testers validating security, and anyone needing to understand bcrypt hashing for secure application development.

Password Storage: Generate bcrypt hashes for storing user passwords securely in databases instead of plaintext.

Authentication Testing: Validate that passwords match bcrypt hashes during development and testing of login systems.

Security Audits: Test existing bcrypt implementations and verify appropriate cost factors are being used.

Migration Planning: Generate bcrypt hashes when migrating from insecure password storage (MD5, SHA-1) to secure bcrypt.

Development Learning: Understand bcrypt work factors, salt generation, and password verification for educational purposes.

To generate: Enter a password, select a cost factor (10-12 recommended for production), and click generate to create a bcrypt hash. To validate: enter both the password and bcrypt hash, then verify if they match. The tool handles salt extraction and comparison automatically.

Security Best Practices: Use cost factor 10-12 for production (12 provides better security but slower performance). Never store passwords in plaintext. Always use bcrypt or Argon2 for password storage. Higher cost factors increase security but also increase login time - balance based on your security requirements and user experience needs.