Generate and verify bcrypt hashes online
Generated with 12 rounds of hashing
The Bcrypt Password Generator is an essential tool for anyone dealing with user authentication, password storage, or system security. It allows you to generate bcrypt hashes from plain text passwords and verify hashes against their original strings with ease. Built to support modern web and app security standards, this tool uses a cost factor (also called rounds) to determine how computationally intensive the hashing should be — giving you control over security and performance.
| Feature | Description |
|---|---|
| Secure Hashing | Generates bcrypt hashes with high-security standards |
| Adjustable Cost Factor | Choose the number of rounds (e.g., 10–14) to control computational cost |
| Hash Verification | Compare a plain text input with an existing bcrypt hash |
| Clear Input | Quickly clear password or hash fields for new operations |
| Masked Input Support | Toggle visibility of password or original input for better usability |
| Stateless Operation | No data is stored — ensures full privacy and compliance |
| Browser-Based Tool | Use it online without installing anything |
| Mobile Friendly | Fully responsive design for smartphones and tablets |
| Real-Time Hash Generation | Instant feedback as soon as you enter a password and cost factor |
| 🧩 Supports All Character Sets | Accepts symbols, unicode, and multilingual input |
Strong Security for Production Environments
Bcrypt is designed to protect passwords in high-risk systems, including banking and healthcare applications.
Mitigates Brute-Force and Dictionary Attacks
Due to its slow hashing and salting, even powerful attackers cannot easily break bcrypt-hashed passwords.
Customizable Cost Factor
Increase the cost as CPU power grows over time to maintain strong protection.
Developer-Friendly Interface
Developers can test password hashing and validation without writing code or running servers.
Free and Instant Access
No signup or installation required — just open the tool and start generating or verifying.
Prevents Data Breaches
Even if a hashed password database is stolen, attackers cannot reverse-engineer the original passwords easily.
Privacy-Focused
No input data is saved or logged, ensuring full confidentiality of your sensitive information.
| Use Case | Description |
|---|---|
| Password Hashing for Login Systems | Hash user passwords before storing in a database |
| Testing Hash Matching in Applications | Developers verify that bcrypt match logic works in their apps |
| Identity and Access Management (IAM) | Safeguard user credentials in secure user identity systems |
| Client-Side Password Validation | Validate hashed passwords directly in browser during front-end development |
| Security Audits and Penetration Testing | Test resilience of authentication logic in web apps |
| DevOps and Infrastructure Scripts | Hash hardcoded passwords in automation scripts securely |
| Educational Tool | Teach or demonstrate how secure password hashing works |
Password Input
Type your password in the “Password” field. You can toggle visibility to see what you’re typing.
Set Rounds (Cost Factor)
Adjust the rounds (typically between 10–14). More rounds = more secure, but also slower.
Generate Hash
Click the “Generate Hash” button. A secure bcrypt hash appears immediately.
Verify Hash
To test whether a plain text password matches a bcrypt hash, enter the hash and original text, then click “Verify Hash.” You’ll get a true/false result.
Clear All
Use the “Clear All” button to reset all fields and start over.
Salted and Slow by Design: Every bcrypt hash includes a unique salt, and the algorithm’s slowness is intentional to counter modern GPU/ASIC-powered cracking.
Adaptive Over Time: As computing power increases, the cost factor can be increased to maintain security levels.
Resists Common Attacks: Unlike outdated algorithms (e.g., MD5, SHA1), bcrypt is purpose-built for storing passwords safely.
Storing plain text passwords
This exposes users to major security risks if the database is ever compromised.
✅ Always hash and salt passwords before storing.
Using outdated hash functions like MD5 or SHA1
These are fast and easily cracked with modern tools.
✅ Use bcrypt, PBKDF2, or Argon2 for password hashing.
Setting a very low cost factor (e.g., 4–6)
A low cost means weak resistance against brute-force attacks.
✅ Use a cost factor of at least 12 for production environments.
Hardcoding bcrypt hashes in client-side code
This can expose hashes to attackers and enable replay attacks.
✅ Hash passwords on the server side only.
Using the same salt for every password
Repeating salts makes your hashes vulnerable to rainbow table attacks.
✅ Generate a new random salt for each password using secure methods.
Not verifying hash match logic before deployment
If you don’t test hash verification correctly, users may be locked out.
✅ Test both hash() and verify() functions thoroughly in development.
Assuming hashing = encryption
Bcrypt is not reversible. Confusing hashing with encryption may lead to wrong implementations.
✅ Remember: hashing is one-way, encryption is reversible.
Logging or printing sensitive password/hash data
Accidentally exposing hashes in logs or console outputs can create major risks.
✅ Avoid logging any passwords or hashes, even for debugging.
Not keeping bcrypt libraries up to date
Old libraries may contain bugs or security vulnerabilities.
✅ Update dependencies and monitor for CVEs (Common Vulnerabilities and Exposures).
Bcrypt is a secure hashing algorithm used to hash passwords. It includes salting and a configurable cost factor, making it resistant to brute-force and rainbow table attacks.
Yes. Bcrypt is specifically designed for password security, unlike MD5 or SHA.
It defines how many times the hashing algorithm runs internally, increasing security with each step.
Yes. It runs entirely in your browser and doesn’t store any data.
A salt is a random value added to the password before hashing to ensure each hash is unique, even for the same password.
A cost factor of 12 is recommended for most production environments. Higher values provide more security but may affect performance.
Enter a password, select a cost factor, and click “Generate Hash.” The resulting hash will appear below.
Yes. As hardware improves, increasing the cost factor helps maintain a strong level of security.
Typically, 60 characters. This includes metadata, cost, salt, and hashed result.
$2b$: Version of bcrypt
12: Cost factor
The rest is salt + hash
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