Hash Generator - MD5, SHA1, SHA256, SHA512 Online Calculator

Generate cryptographic hashes using popular algorithms including MD5, SHA1, SHA256, and SHA512. Perfect for security, data integrity verification, and password hashing.

Hash Configuration
Select algorithm and enter text to hash
Hash Algorithms

Common hashing algorithms:

  • MD5: Fast but cryptographically broken
  • SHA-1: Deprecated for security uses
  • SHA-256: Current security standard
  • SHA-512: Higher security, larger output
Use Cases

When to use hash functions:

  • Password storage and verification
  • Data integrity checking
  • Digital signatures
  • Blockchain and cryptocurrency
  • File deduplication
Security Notes

Important security considerations:

  • Use salt for password hashing
  • SHA-256+ recommended for security
  • Hashes are one-way functions
  • Avoid MD5 and SHA-1 for security
  • Consider using bcrypt for passwords