Online Hash Generator

How to Use This Hash Generator

1. Enter your text: Type or paste the text you want to hash in the input field (automatically expands for longer text)
2. Optional - Set Bcrypt cost: For custom Bcrypt security levels, enter a cost between 4-31 (higher values = more secure but slower)
3. Click Generate: Press the "Generate Hashes" button to create all hash types simultaneously
4. Copy your hash: Click the "Copy" button next to any hash to instantly copy it to your clipboard

Frequently Asked Questions

Q: What is a hash generator and why do I need it?
A: A hash generator converts plain text into fixed-length encrypted strings using cryptographic algorithms. It solves critical security challenges: storing passwords safely in databases without exposing plain text, verifying file integrity during downloads, creating digital signatures for authentication, and testing security implementations. Developers use hash generators daily for secure authentication systems, while security professionals rely on them for vulnerability testing and compliance verification.

Q: How do I generate a WordPress password hash for database updates?
A: Enter your desired password in the text field and click "Generate Hashes". The "WordPress Password" row will display a hash using the phpass algorithm that WordPress core uses. Copy this hash and paste it directly into the user_pass column of the wp_users table in your WordPress database via phpMyAdmin or your database management tool. This method is essential when you have lost admin access but retain database access to your WordPress site.

Q: What is Bcrypt cost factor and what value should I choose?
A: Bcrypt cost (range 4-31) determines computational complexity - each increment doubles processing time and security strength. For production environments, use cost 10-12 for optimal balance between security and performance (approximately 0.1-0.4 seconds). Cost 13-15 provides enhanced protection for sensitive financial or healthcare data but increases login latency. Costs below 10 are only suitable for development testing, while costs above 15 may impact user experience significantly.

Q: Which hash algorithm is most secure for password storage?
A: For password storage, prioritize Argon2id (winner of 2015 Password Hashing Competition) or Bcrypt with cost 10+ as they include automatic salting and are designed to resist GPU-based brute-force attacks. For general-purpose hashing and checksums, SHA-256 or SHA-512 are industry-standard choices. Avoid MD5 and SHA-1 for security-critical applications as they are vulnerable to collision attacks and rainbow table lookups. WordPress uses a portable phpass implementation for maximum server compatibility.

Q: Is this hash generator safe to use for sensitive passwords?
A: Yes, all cryptographic operations execute entirely within your browser session using client-side processing. We do not store, log, transmit, or have any access to your input data or generated hashes. The tool operates without sending data to external servers. Generated hashes exist only in your browser memory and are cleared when you refresh or close the page. For maximum security with highly sensitive production passwords, consider using offline hash generation tools or command-line utilities.

Q: What is the difference between hashing and encryption?
A: Hashing is a one-way function that converts data into a fixed-length string that cannot be reversed to reveal the original input. It is used for password storage, data integrity checks, and digital signatures. Encryption is a two-way process where data is scrambled using a key and can be decrypted back to its original form using the correct key. Use hashing for passwords where you never need to recover the original text, and use encryption for data you need to decrypt later, such as sensitive files or communications.

Q: Can I use MD5 or SHA-1 hashes for password security?
A: No, MD5 and SHA-1 should never be used for password hashing due to critical vulnerabilities. They are too fast (allowing billions of hash attempts per second on modern GPUs), lack built-in salting, and are susceptible to collision attacks and rainbow table lookups. MD5 and SHA-1 are only acceptable for non-security applications like file checksums or cache keys. Always use Bcrypt, Argon2id, or scrypt for password storage in modern applications to ensure cryptographic security.

Q: How do I verify if a password matches a hash?
A: Password verification requires using the appropriate verification function for the hash algorithm. For Bcrypt and Argon2id hashes, use password_verify() in PHP or equivalent functions in other languages - these handle salt extraction automatically. For WordPress passwords, use the wp_check_password() function or the PasswordHash class CheckPassword() method. You cannot verify by regenerating the hash and comparing strings, as algorithms like Bcrypt use random salts that produce different hashes for the same input. Simple hashes like MD5 or SHA-256 can be compared directly but lack security features.

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