Free Hash Generator
Generate secure cryptographic hashes from text or files. Support for MD5, SHA-1, SHA-256, SHA-512, and more. Perfect for data integrity verification and security applications.
55 characters
Secure Algorithms (Recommended)
Most widely used secure hash. Perfect for passwords, data integrity, and blockchain.
Higher security than SHA-256. Used for enhanced security applications.
Latest SHA-3 family. Alternative to SHA-2 with different internal structure.
Legacy Algorithms (Not Recommended)
Fast but cryptographically broken. Only use for checksums, not security.
Deprecated for security use. Vulnerable to collision attacks.
Security Note: Use SHA-256 or higher for password hashing, digital signatures, and security-critical applications.
Security Applications
- • Password storage (with salt)
- • Digital signatures
- • Certificate verification
- • API authentication
- • Blockchain and cryptocurrency
Data Integrity
- • File verification
- • Database integrity checks
- • Software checksums
- • Backup verification
- • Download validation
What is a cryptographic hash?
A cryptographic hash is a mathematical function that converts input data into a fixed-size string of characters. The same input always produces the same hash, but even tiny changes create completely different results.
Which algorithm should I use?
For security applications, use SHA-256 or SHA-512. For simple checksums where security isn't critical, MD5 is faster. Avoid MD5 and SHA-1 for passwords or sensitive data.
Are my inputs secure?
Yes, all hashing happens locally in your browser. Your input text or files are never sent to our servers, ensuring complete privacy.
Can hashes be reversed?
No, cryptographic hashes are one-way functions. You cannot reverse a hash to get the original input. However, weak passwords can be cracked using rainbow tables or brute force.