Hash Generator

Compute the hash of any text or file.

Hash Generator

Characters: 0Maximum limit: 10,000

About Hash Functions

What is a hash function?

A cryptographic hash function turns data of any size into a fixed-length string. It is deterministic (same input = same output) and practically irreversible.

MD5

  • 128 bits (32 caracteres hex)
  • Fast but not secure
  • Only for simple checksums
  • Vulnerable to collisions

SHA-1

  • 160 bits (40 caracteres hex)
  • Safer than MD5
  • Deprecated for security
  • Still used in Git

SHA-256

  • 256 bits (64 caracteres hex)
  • Current secure standard
  • Used in Bitcoin/blockchain
  • Collision resistant

SHA-512

  • 512 bits (128 caracteres hex)
  • Safer than SHA-256
  • Better for large data
  • Used in SSL/TLS certificates

Common use cases:

  • File integrity verification
  • Secure password storage
  • Unique content identifiers
  • Digital signatures and certificates
  • Blockchain and cryptocurrencies

Important considerations:

  • Hashes are irreversible - you can't get the original text back
  • MD5 and SHA-1 must not be used for security-critical applications
  • For passwords, use specialized functions like bcrypt or Argon2
  • Small changes in the input produce completely different hashes